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11 Dec 2019

Bromomethane is converted to methanol in an alkaline solution. The reaction is first order in each reactant. CH3Br(aq)+OH−(aq)→CH3OH(aq)+Br−(aq)

Write the rate law

How does the reaction rate change if the OH− concentration is decreased by a factor of 5?

What is the change in rate if the concentrations of both reactants are doubled?

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Deanna Hettinger
Deanna HettingerLv2
13 Dec 2019

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Related questions


Consider the following reaction:

CH3Br(aq) + OH–(aq) CH3OH(aq) + Br–(aq)

The rate law for this reaction is first order in CH3Br and first order in OH–. When [CH3Br] is 5.0 × 10-3 M and [OH–] is 0.050 M, the reaction rate at 298 K is 0.0432 M/s. (a) What is the value of the rate constant? (b) What are the units of the rate constant? (c) What would happen to the rate if the concentration of OH– were tripled? (d) What would happen to the rate if the concentration of both reactants were tripled?

A reaction in which A, B, and C react to form products is first order in A, second order in B, and zero order in C. Write a rate law for the reaction. What is the overall order of the reaction? By what factor does the reaction rate change if [A] is doubled (and the other reactant concentrations are held constant)? By what factor does the reaction rate change if [B] is doubled (and the other reactant concentrations are held constant)? By what factor does the reaction rate change if [C] is doubled (and the other reactant concentrations are held constant)? By what factor does the reaction rate change if the concentrations of all three reactants are doubled?

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