how many different alkenes result when 2-bromohexane is treated with a strong base? select answer from the options below 1 2 3 4

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Answer 1

When 2-bromohexane is treated with a strong base the alkenes that would result is given as 1

What alkenes would result

When 2-bromohexane is treated with a strong base, such as sodium ethoxide (NaOEt) or sodium hydroxide (NaOH), it undergoes elimination reaction (also called dehydrohalogenation) to form different alkenes.

The product(s) of the reaction depend on the position of the β-carbon (the carbon next to the bromine atom) that undergoes deprotonation. Since there are two β-carbons in 2-bromohexane, two different alkenes can be formed.

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Related Questions

after pipetting the solution to be diluted into the volumetric flask, how much water should be added before the first mixing?

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After pipetting the solution, the amount of water needed depends on the desired concentration and the amount of solution to be diluted.

When pipetting a solution to be diluted into a volumetric flask, the first step is to add the appropriate amount of water. The amount of water needed depends on the desired concentration and the amount of solution to be diluted. For example, if you are diluting 1 mL of a 5M solution to a 2M solution, you would need to add approximately 3 mL of water.

This can be calculated as follows:

C₁V₁ = C₂V₂

where, C₁ = initial concentration, C₂= final concentration, V₁= initial volume, V₂= final or desired volume.

Substituting the values, we can find the desired volume.

Once you have added the desired amount of water, you should mix the solution by swirling the flask or stirring the solution gently with a stirring rod. It is important to mix the solution thoroughly to ensure a uniform concentration of the solution.

Once the solution has been mixed, you should check the volume of the solution. You can do this by reading the volume at the bottom of the meniscus, which is the curved surface of the liquid. It is important to make sure that the volume is correct as this will affect the concentration of the solution.

Finally, you should adjust the volume of the solution as needed. If the volume is too high, you can remove a small amount of liquid using a pipette. If the volume is too low, you can add more water.

In summary, after pipetting the solution to be diluted into a volumetric flask, you should add the appropriate amount of water and mix the solution to get the desired concentration. You should then check the volume of the solution and adjust it as needed.

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methane gas and oxygen gas react to form water vapor and carbon dioxide gas. what volume of carbon dioxide would be produced by this reaction if of methane were consumed?

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The volume of carbon dioxide that would be produced by this reaction if methane were consumed is: [tex]CH4 + 2O2 → CO2 + 2H2O[/tex]

When methane gas and oxygen gas react, they produce water vapor and carbon dioxide gas. The volume of carbon dioxide produced by this reaction depends on the amount of methane gas that is consumed.

If 100 mL of methane gas were consumed, then the volume of carbon dioxide produced would be 44 mL. This reaction can be expressed in the following equation:
[tex]CH4 + 2O2 → CO2 + 2H2O[/tex]

The mole ratio of methane gas to carbon dioxide gas produced by this reaction is 1:1. This means that if 100 mL of methane gas is consumed, then 44 mL of carbon dioxide gas will be produced. This is because 44 mL of carbon dioxide is equivalent to 1 mole of carbon dioxide gas, and 100 mL of methane gas is equivalent to 1 mole of methane gas.

Therefore, if 100 mL of methane gas is consumed in this reaction, then 44 mL of carbon dioxide gas will be produced. This can be determined by using the mole ratio of methane gas to carbon dioxide gas, which is 1:1.

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when carbonates (co32-) or bicarbonates (hco3-) are reacted with an acid in an acid-base reaction, the resulting product is:

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When carbonates (CO3^2-) or bicarbonates (HCO3^-) are reacted with an acid in an acid-base reaction, the resulting product is carbonic acid (H2CO3).

This reaction follows the general pattern of an acid-base reaction, where the base (CO3^2- or HCO3^-) and acid (H+) combine to form the conjugate acid (H2CO3) and conjugate base (OH-).
The general equation for this reaction is:
Acid + Base ⇋ Conjugate Acid + Conjugate Base
In the case of carbonates and bicarbonates, the equation is:
H+ + CO3^2- (or HCO3^-) ⇋ H2CO3 + OH-
The reaction between carbonates and bicarbonates with an acid is called a "carbonate hydrolysis" reaction. This is because the hydroxide ions (OH-) from the reaction can hydrolyze the carbonate ion (CO3^2-) and bicarbonate ion (HCO3^-), breaking them down into carbonic acid (H2CO3).
In addition to the carbonate hydrolysis reaction, there is also a "bicarbonate hydrolysis" reaction that occurs when bicarbonate ions are reacted with an acid. The general equation for this reaction is:
H+ + HCO3^- ⇋ H2CO3 + H2O
In this reaction, the hydroxide ions are replaced with water, and the resulting product is still carbonic acid (H2CO3).

To sum up, when carbonates (CO3^2-) or bicarbonates (HCO3^-) are reacted with an acid in an acid-base reaction, the resulting product is carbonic acid (H2CO3). This reaction follows the general pattern of an acid-base reaction, where the base and acid combine to form the conjugate acid and conjugate base. The reaction between carbonates and bicarbonates with an acid is called a "carbonate hydrolysis" reaction, and for bicarbonates it is called a "bicarbonate hydrolysis" reaction.

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given the glucose level i control mean of 100 mg/dl and the standard deviation is 4 mg/dl, what is the coefficient of variation?

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The coefficient of variation is 4%.

Coefficient of variation is the ratio of standard deviation to the mean, expressed as a percentage. It is used to compare the variability of data sets with different means. The formula for calculating the coefficient of variation is:

Coefficient of variation = (standard deviation / mean) x 100

Given the glucose level control mean of 100 mg/dl and the standard deviation is 4 mg/dl, the coefficient of variation can be calculated as follows:

Coefficient of variation = (standard deviation / mean) x 100

Coefficient of variation = (4 / 100) x 100

Coefficient of variation = 4%

Therefore, the coefficient of variation is 4%.

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calculate the magnitude of the maximum orbital angular momentum lmax for an electron in a hydrogen atom for states with a principal quantum number of 2.

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The magnitude of the maximum orbital angular momentum lmax for an electron in a hydrogen atom for states with a principal quantum number of 2 is 2.

What is angular momentum?

In physics, аngulаr momentum (аlso known аs moment of momentum or rotаtionаl momentum) is а meаsure of аn object's rotаtionаl motion аround а fixed аxis. The аmount of аngulаr momentum аn object hаs is determined by the mаss аnd speed of the object rotаting аnd the distаnce between the rotаtion аxis аnd the object.

What is the orbitаl аngulаr momentum of аn electron?

The orbitаl аngulаr momentum (L) of аn electron is а quаntum number thаt is used to describe its motion аround the nucleus of аn аtom. It is one of the four quаntum numbers thаt cаn be used to describe аn electron in аn аtom. Its vаlues аre determined by the principаl quаntum number (n) аnd the аzimuthаl quаntum number (l).

The mаximum vаlue of the аzimuthаl quаntum number (l) is determined by the principаl quаntum number (n). For а given vаlue of n, l cаn hаve vаlues rаnging from 0 to n-1. Therefore, for the principаl quаntum number of 2, l cаn hаve vаlues of 0 or 1. Thus, the mаximum vаlue of the orbitаl аngulаr momentum is 2.

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a compound has an empirical formula of c3h6o and a molar mass of 116 g/mol. what is the molecular formula?

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Answer:

Step by step explanation:

To determine the molecular formula of the compound, we need to find its molecular weight or molar mass. We can start by calculating the empirical formula's molar mass:

Empirical molar mass = (3C x Atomic mass of C) + (6H x Atomic mass of H) + (1O x Atomic mass of O)
Empirical molar mass = (3 x 12.01 g/mol) + (6 x 1.01 g/mol) + (1 x 16.00 g/mol) = 58.11 g/mol

We can then calculate the compound's molecular formula by dividing its molar mass by the empirical molar mass and multiplying the empirical formula's subscripts by the result:

Molecular formula = (Empirical formula) x (Molar mass of compound / Empirical molar mass)

Molecular formula = C3H6O x (116 g/mol / 58.11 g/mol) = C6H12O2

Therefore, the molecular formula of the compound is C6H12O2.

after the reaction reaches equilibrium at 690 k, the total pressure in the flask is 1.2 atm. what is the value of kp for the reaction at 690 k?

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The value of Kp for the reaction at 690 K is 2.51 x 10-3.

At equilibrium, the total pressure in the flask is equal to the sum of the partial pressures of the reactants and products. Since the total pressure is given as 1.2 atm, the value of Kp can be calculated as follows:

Kp = (PH2*PI2)/PHI = (1.2 atm)/(PHI)

Where PH2, PI2 and PHI are the partial pressures of hydrogen gas, iodine gas and hydrogen iodide gas, respectively.

At equilibrium, the rate of forward reaction is equal to the rate of the reverse reaction. Hence, the value of Kp for the reaction at 690 K is equal to the equilibrium constant of the reaction at 690 K.

Kp = (2.51 x 10-3)690 K

Hence, the value of Kp for the reaction at 690 K is 2.51 x 10-3.

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which type of chemical reaction occurs when natural gas is burned?(1 point) responses exothermic exothermic endothermic endothermic replacement replacement decomposition

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The type of chemical reaction that occurs when natural gas is burned is exothermic.

A chemical reaction is a process that leads to the formation of a new substance. During a chemical reaction, the atoms of the original substance are rearranged to create new molecules or compounds. In this process, the bonds between atoms break apart and reform, leading to the creation of new substances. Natural gas is a fossil fuel that is used to generate electricity, heat homes and buildings, and fuel vehicles. It is a hydrocarbon gas that is primarily composed of methane. It is a widely used source of energy due to its abundance, low cost, and relatively low environmental impact. An exothermic reaction is a type of chemical reaction that releases energy in the form of heat or light. During this reaction, the products of the reaction have less energy than the reactants. This energy is released into the surroundings as heat or light. The combustion of natural gas is an exothermic reaction. When natural gas is burned, it reacts with oxygen to produce carbon dioxide, water vapor, and energy. The reaction is exothermic because the energy of the products is less than the energy of the reactants, and the difference in energy is released as heat into the surroundings.

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a 78.0 ml 78.0 ml portion of a 1.70 m 1.70 m solution is diluted to a total volume of 218 ml. 218 ml. a 109 ml 109 ml portion of that solution is diluted by adding 115 ml 115 ml of water. what is the final concentration? assume the volumes are additive.

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The final concentration of a solution after dilution can be calculated using the formula C1V1 = C2V2, C2 and V2 are the final concentration and volume. The final concentration of the solution after the second dilution is 0.309 M.

To find the final concentration of the diluted solution, we can use the formula: C1V1 = C2V2. Where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume. First, we dilute a 78.0 ml portion of a 1.70 M solution to a total volume of 218 ml. Using the formula, we can find the final concentration: [tex](1.70 M)(78.0 ml) = C2(218 ml)[/tex]

[tex]C2 = (1.70 M)(78.0 ml) / (218 ml)[/tex]

[tex]C2 = 0.610 M[/tex]

[tex]C1V1 = C2V2[/tex]

[tex](0.610 M)(109 ml) = C2(109 ml + 115 ml)[/tex]

[tex]C2 = (0.610 M)(109 ml) / (109 ml + 115 ml)\\\C2 = 0.309 M[/tex]

Therefore, the final concentration of the solution after the second dilution is 0.309 M.

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some advantages of using photoredox dyes compared to transition metal catalysts include (select all that apply):

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Some advantages of using photoredox dyes compared to transition metal catalysts include increased selectivity, cost-effectiveness, broad substrate scope, and enhanced reaction efficiency.

Selectivity refers to the ability to promote a single desired reaction and minimize unwanted side reactions. Photoredox dyes tend to have higher selectivity than transition metal catalysts, meaning they are more effective at promoting the desired reaction while reducing the formation of byproducts.

Cost-effectiveness is an important factor when it comes to chemical reactions. Photoredox dyes tend to be cheaper than transition metal catalysts, making them more appealing for those on a budget.

The broad substrate scope of photoredox dyes allows for the reaction of a wide variety of compounds, whereas transition metal catalysts are usually limited to certain types of substrates.

Finally, photoredox dyes often have enhanced reaction efficiency compared to transition metal catalysts. This means they can carry out the same reaction faster and with a higher yield.

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you run a column in a less polar solvent and then rerun the same column in a more polar solvent, what will happen to the spots in the column?

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When you run a column in a less polar solvent and then rerun the same column in a more polar solvent, the spots in the column will move with different distances.

During this process, some of the spots will move with longer distances while others will move with shorter distances.

The spots that move with longer distances will be considered more polar and the spots that move with shorter distances will be considered less polar.

There are several factors that influence the movement of the spots in a column chromatography. The polarity of the solvent is one of the most important factors.

A polar solvent will attract polar compounds, while a nonpolar solvent will attract nonpolar compounds.

The spots in a column chromatography will move with different distances depending on the polarity of the solvent used.

In a less polar solvent, the spots will move with shorter distances because the solvent is not able to dissolve the more polar compounds as efficiently.

a more polar solvent, the spots will move with longer distances because the solvent is able to dissolve the more polar compounds more efficiently.

This is because a more polar solvent has a higher affinity for the polar compounds than a less polar solvent.Overall, the movement of the spots in a column chromatography is determined by the polarity of the solvent used.

When you run a column in a less polar solvent and then rerun the same column in a more polar solvent, the spots in the column will move with different distances.

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What do these two changes have in common?
boiling sugar to make caramel
using a large magnet to remove pieces of iron from a junkyard

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Boiling sugar to make caramel and using a large magnet to remove pieces of iron from a junkyard are two very different processes, but they have one thing in common: they both involve a physical change.

A physical change is a change in a substance that does not result in the formation of a new substance with different chemical properties. In other words, the substance does not undergo a chemical reaction, but rather a change in its physical properties.

Boiling sugar to make caramel is a physical change because the sugar undergoes a change in its physical properties, such as color, texture, and taste, without undergoing a chemical reaction. The sugar molecules are heated to the point where they break down and re-form into a new substance with new properties, but the chemical composition of the sugar remains the same.

Using a large magnet to remove pieces of iron from a junkyard is also a physical change because the magnet is not altering the chemical properties of the iron, but only its physical location. The magnet is attracting and removing the iron from the junkyard, but the iron itself is not undergoing a chemical reaction.

In both cases, the substances are undergoing a physical change, but their chemical properties remain unchanged.

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a) select the best set of reagents for the transformation. an alkene bonded to a tert butyl group and three hydrogens is transformed to a tert butyl group bonded to c h 2 c h 2 o h. the best reagents are:

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To transform an alkene bonded to a tert-butyl group and three hydrogens to a tert-butyl group bonded to CH2CH2OH, the best reagents are H2SO4 and H2O.

H2SO4 is used to protonate the double bond and form a carbocation, which can then undergo nucleophilic attack by water to form the final product. This reaction is known as hydration of alkenes.To perform the transformation, the alkene is first protonated with H2SO4 to form a carbocation intermediate.

Water acts as a nucleophile and attacks the carbocation to form the alcohol product. This reaction is shown below:Thus, the final product formed is tert-butyl group bonded to CH2CH2OH.Another way to perform this transformation is by using oxymercuration-demercuration.

In this reaction, the alkene is first treated with mercuric acetate and water to form a cyclic intermediate.

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in both parts of the activity, you conducted a second trial without having to remix the chemicals. how was this possible?

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As long as the same amount of chemicals and the same reaction conditions are used, the reaction should proceed in the same way, resulting in the same products and reactions.

Therefore, repeating the experiment using the same chemicals and conditions should yield similar results without the need to remix the chemicals. This is possible because chemical reactions follow the law of conservation of mass, which states that matter cannot be created or destroyed, only rearranged.

What is law of conservation?

The law of conservation of mass, also known as the principle of mass conservation, states that the total mass of a closed system (in a chemical reaction or physical change) remains constant, regardless of the processes or transformations that occur within the system. In other words, matter cannot be created or destroyed, only transformed or rearranged in a chemical reaction or physical change. This law is a fundamental principle of chemistry and is widely used in chemical calculations and experiments.

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Synthesis of tetracyclone lab report discussion questions
1. this aldol condensation was ran in ethanol, however all starting materials are also soluble in acetone. suggest why acetone wouldn't be an appropriate solvent for this reaction. 2. if you were to take an nmr of your product, in what region(s) of the spectrum (ppm range) would you see peaks? 3. if you were to take an ftir spectrum of your product, what main peak(s) would you observe? 4. the rate of this reaction is mostly held back by the poor solubility of koh in ethanol, which leads to slow deprotonation of the dibenzylketone. suggest a possible improvement that would allow for a faster rate of reaction.

Answers

Acetone is a polar aprotic solvent, meaning it cannot effectively solvate charged species like the hydroxide ion in KOH. Since the aldol condensation reaction involves deprotonation by hydroxide ion, using acetone as a solvent could slow down the reaction rate or even prevent it from occurring.

Ethanol is a better solvent for this reaction because it can solvate both the hydroxide ion and the organic starting materials. In the NMR spectrum of the product, peaks would be observed in the region of 0-2 ppm for the methyl protons, around 2-2.5 ppm for the methylene protons adjacent to the carbonyl group, and around 7-8 ppm for the aromatic.

In the FTIR spectrum of the product, a main peak at around 1700-1750 cm-1 would be observed, corresponding to the carbonyl stretching vibration. Other peaks related to C-H bending and stretching vibrations could also be observed in the region of 2800-3000 cm-1.

One possible improvement to increase the rate of reaction would be to use a more polar solvent, such as DMF or DMSO, which can better solvate KOH and promote faster deprotonation of the dibenzylketone.

Another possible improvement would be to increase the temperature of the reaction, which can also speed up the rate of deprotonation and subsequent aldol condensation.

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hat role does water play in the reaction with t-BuCl? Choose all that apply. Multiple answers: You can select more than one opt ion A. nucleophile B. solvent C. acid . base

Answers

Water plays the role of a solvent and nucleophile in the reaction with t-BuCl.

This is a substitution reaction where water is used as a solvent and a nucleophile.

What is a nucleophile?

A nucleophile is a chemical species that donates an electron pair to an electron-deficient species. In organic chemistry, nucleophiles are a class of reagents crucial in organic synthesis.

Nucleophiles are atoms or molecules that have lone pairs of electrons and are attracted to positively charged ions or atoms. They are an important class of reactants in many organic reactions, such as substitution, addition, and elimination reactions.

What is a solvent?

A solvent is a liquid that dissolves another substance, a solute, to form a homogeneous solution. Solvents can dilute, dissolve, or extract substances in various industrial and laboratory applications.

Water, ethanol, acetone, and ether are examples of common solvents.

role does water play in the reaction with t-BuCl?

Water plays the role of a solvent and nucleophile in the reaction with t-BuCl. This is a substitution reaction where water is used as a solvent and a nucleophile. Hence, the correct options are B. solvent.

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after pressing a heat treatment operation performed on the compact to bond metallic particles is know as:

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Answer: The heat treatment operation performed on the compact to bond metallic particles is known as sintering.

What is sintering?

Sintering is a heat treatment process in which particles of a material are compressed into a strong mass, typically by heat but sometimes by pressure or other means. This process is mostly used for manufacturing ceramics, metals, and plastics.

The goal of sintering is to make a material more durable and compact, and it can be done in several ways.In general, sintering is used to manufacture components that are strong, resistant to wear and tear, and have high heat resistance.

Because sintering involves the use of heat, it can be used to remove defects from materials and create components with high dimensional accuracy.

In addition, sintering can be used to produce a wide range of shapes and sizes, making it a versatile manufacturing technique.

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49.2 ml of a 0.524 m solution of hno3 is titrated with fe(oh)3. it takes 85 ml of fe(oh)3 to reach the equivalence point. what is the concentration (molarity) of the fe(oh)3? answer to 2 decimal places

Answers

The Fe(OH)₃ solution has a content of 0.304 M.

In this titration, HNO₃ is the acid and Fe(OH)₃ is the base. At the equivalence point, all the H+ ions from the HNO₃ react with all the OH- ions from the Fe(OH)₃ to form water and the salt, Fe(NO₃)₃. We can use the balanced chemical equation for the reaction to determine the stoichiometric ratio of HNO₃ to Fe(OH)₃ and calculate the molarity of Fe(OH)₃.

The balanced chemical equation for the reaction is:

HNO₃ + 3Fe(OH)₃ → Fe(NO₃)₃ + 3H₂O

From the equation, we see that 1 mole of HNO₃ reacts with 3 moles of Fe(OH)₃. Therefore, the number of moles of HNO₃ in the solution can be calculated as:

moles of HNO₃ = Molarity of HNO₃ x Volume of HNO₃ solution in liters

moles of HNO₃ = 0.524 M x (49.2 mL / 1000 mL/L)

moles of HNO₃ = 0.0258 mol

At the equivalence point, the number of moles of Fe(OH)₃ added is equal to the number of moles of HNO₃ in the solution. Therefore, we can calculate the molarity of Fe(OH)₃ as:

Molarity of Fe(OH)₃ = moles of Fe(OH)₃ added / Volume of Fe(OH)₃ solution in liters

Since the volume of the Fe(OH)₃ solution added is 85 mL, or 0.085 L, we can calculate the moles of Fe(OH)₃ as:

moles of Fe(OH)₃ = moles of HNO₃ = 0.0258 mol

Therefore, the molarity of Fe(OH)₃ is

Molarity of Fe(OH)₃ = 0.0258 mol / 0.085 L

Molarity of Fe(OH)₃ = 0.304 M

Thus, the concentration (molarity) of the Fe(OH)₃ solution is 0.304 M, rounded to two decimal places.

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which elementary step has the highest energy of activation in the sn1 mechanism for the substitution reaction of (ch3)3coh with hx?multiple choice question.nucleophilic capture of the carbocationloss of h2o to form the intermediate carbocationprotonation of the alcohol

Answers

The highest energy of activation in the SN1 mechanism for the substitution reaction of (CH3)3COH with HX is nucleophilic capture of the carbocation.

During this step, a nucleophile (such as HX) attacks the positive charge on the carbocation, forming a new bond and breaking an existing bond.

This transition state has a higher energy of activation than the other steps in the reaction because it requires the greatest reorganization of the electron density.

Protonation of the alcohol has the second highest energy of activation. This step involves the nucleophile donating a proton to the alcohol, forming an oxonium ion.

This step requires an intermediate and is energetically favorable because the oxygen lone pair donates electron density to the carbon, stabilizing the charge.

Finally, the loss of H2O to form the intermediate carbocation is the lowest energy of activation. This step involves breaking the bond between the oxygen and the hydrogen, releasing water in the process.

This is energetically favorable because the carbocation is more stable than the alcohol.

In conclusion, the highest energy of activation in the SN1 mechanism for the substitution reaction of (CH3)3COH with HX is nucleophilic capture of the carbocation.

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citric acid contains 37.51% c, 4.20% h, and 58.29% o by mass. what is the empirical formula of this compound?

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The empirical formula of the given compound can be determined as follows the CHOS or C3H4O3.

According to the given data, the compound citric acid contains 37.51% C, 4.20% H, and 58.29% O by mass. So, let's assume that we have 100 g of citric acid, and then, we can find the masses of each element present in it: Mass of carbon = 37.51 gMass of hydrogen = 4.20 g. Mass of oxygen = 58.29 g.

Next, we need to convert the masses into the number of moles using the molar masses of the elements. The molar mass of carbon = 12.01 g/mol, Number of moles of carbon = 37.51 g / 12.01 g/mol = 3.124 molMolar mass of hydrogen = 1.01 g/molNumber of moles of hydrogen = 4.20 g / 1.01 g/mol = 4.158 molMolar mass of oxygen = 16.00 g/molNumber of moles of oxygen = 58.29 g / 16.00 g/mol = 3.643 follow, we need to find the simplest whole-number ratio of these moles by dividing them by the smallest number of moles, which is 3.124 mol: Carbon = 3.124 mol / 3.124 mol = 1Hydrogen = 4.158 mol / 3.124 mol = 1.33 ≈ 1Oxygen = 3.643 mol / 3.124 mol = 1.17 ≈ 1So, the empirical formula of citric acid is CHOS or C3H4O3.

Answers

Answer:

the law of inertia

Explanation:

Answer:

Newton's first law of motion states that an object at rest will remain at rest, and an object in motion will remain in motion with a constant velocity, unless acted upon by an external force. The trials of Newton's first law of motion are:

Inertia: The tendency of an object to resist changes in its motion, which is a direct consequence of Newton's first law. For example, a book resting on a table will remain at rest unless acted upon by an external force such as someone picking it up or the table collapsing.

Acceleration: If an external force acts on an object, it will accelerate. For example, a ball sitting on a flat surface will not move unless a force is applied, such as someone pushing it. Once the force is applied, the ball will accelerate in the direction of the force.

Equilibrium: When the net force acting on an object is zero, it is said to be in equilibrium. For example, a person standing still on the ground is in equilibrium because the gravitational force pulling them down is balanced by the force of the ground pushing up on them.

Friction: Friction is a force that opposes motion between two surfaces that are in contact with each other. This force is another example of an external force that can affect an object's motion, and is related to Newton's first law because it can cause an object to come to rest if the force of friction is greater than the force applied to the object.

a solution is made by dissolving 8424 mg of sodium chloride, nacl, in 0.1711 kg of water. what is the concentration in parts per billion?

Answers

The concentration of sodium chloride (NaCl) in the solution is 840,000 parts per billion (ppb).

To calculate this, divide the mass of sodium chloride (8424 mg) by the mass of water (0.1711 kg), then multiply the result by 1 billion (10^9).

To calculate the concentration of a solution, you must first determine the mass of the solute (NaCl in this case). The mass of the solute is given in the question as 8424 mg.

The mass of the solvent (water) is given as 0.1711 kg.

To calculate the concentration of the solution, divide the mass of the solute by the mass of the solvent, and then multiply the result by 1 billion (10^9).

In this example, 8424 mg divided by 0.1711 kg is equal to 49,336,297, which multiplied by 1 billion is equal to 49,336,297,000,000, or 840,000 parts per billion (ppb).

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calculate the molar mass of magnesium chloride, mgcl2. group of answer choices 125.9 g/mole 24.31 g/mole 70.90 g/mole 95.21 g/mole 59.76 g/mole

Answers

Answer: The molar mass of magnesium chloride, MgCl2 is 95.21 g/mole.

How to calculate the molar mass of magnesium chloride, MgCl2?

The molar mass of a compound is the sum of the atomic masses of all the atoms present in one molecule of that compound.

The atomic mass of magnesium is 24.31 g/mole and the atomic mass of chlorine is 35.45 g/mole (17.77 g/mole for each Cl atom).

So, the molar mass of magnesium chloride, MgCl2 is:

Molar mass of MgCl2= (Molar mass of Mg) + 2 x (Molar mass of Cl)

= 24.31 + 2 x 35.45= 95.21 g/mole

Therefore, the molar mass of magnesium chloride, MgCl2 is 95.21 g/mole.

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Examine the two scenarios below.

Scenario A: 100 g of glucose in the presence of unlimited oxygen is metabolized through aerobic respiration.
Scenario B: 100 g of glucose in the absence of oxygen is metabolized through anaerobic respiration.
Would the mass of products produced in Scenario A be greater than, less than, or equal to the mass of products produced in Scenario B? Justify your answer.

Answers

The mass of products produced in Scenario A would be greater than the mass of products produced in Scenario B.

This is because aerobic respiration produces more ATP (energy) per molecule of glucose than anaerobic respiration. In aerobic respiration, glucose is completely broken down into carbon dioxide and water, and a total of 36-38 ATP molecules are produced per glucose molecule.

In anaerobic respiration, glucose is only partially broken down, and only 2 ATP molecules are produced per glucose molecule. The additional ATP produced in aerobic respiration results in the formation of more metabolic products such as carbon dioxide and water, leading to a higher mass of products overall.

What is aerobic respiration ?

Aerobic respiration is the process by which cells convert glucose and oxygen into carbon dioxide, water, and energy (in the form of ATP). This process takes place in the mitochondria of eukaryotic cells and in the cytoplasm of prokaryotic cells. The process of aerobic respiration is highly efficient and allows organisms to extract a large amount of energy from glucose, producing up to 38 molecules of ATP per molecule of glucose.

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which is the best colored indicator to use in the titration of 0.1 m ch3cooh(aq) with naoh(aq)? why? look up ka values in the appendix. indicator pka bromocresol green 4.8 bromothymol blue 6.8 phenolphthalein 9.2 group of answer choices