Additional Questions
- For the reaction 2 A + B → C, the rate of formation of C was measured for a number of different initial concentrations of A and B, with the following results:
A B Rate 0.10 M 0.10 M 2.0 x 10-3 mol/L-min 0.20 M 0.10 M 8.0 x 10-3 mol/L-min 0.30 M 0.10 M 1.8 x 10-2 mol/L-min 0.20 M 0.20 M 8.0 x 10-3 mol/L-min 0.30 M 0.30 M 1.8 x 10-2 mol/L-min - Write the rate equation for the reaction.
- What is the order of the reaction?
- Calculate the specific rate constant.
- The reaction below takes place in aqueous solution:
2 ClO2 + 2 OH- → ClO3- + ClO2- + H2O
The following initial rates were obtained for this reaction at various initial concentrations:
ClO2 OH- Rate (mol/L-s) 0.10 0.20 0.46 0.20 0.20 1.84 0.20 0.10 0.92 - Write the rate law for the reaction.
- What is the order of the reaction?
- What is the value of the specific rate constant?
- The reaction of carbon dioxide with an aqueous solution in which the hydroxide ion concentration is greater than 10-4 M occurs in two steps:
CO2(aq) + OH-(aq) → HCO3- (aq) slow
HCO3-(aq) + OH-(aq) → CO32-(aq) + H2O(l) fast- Write a rate equation for the disappearance of CO2.
- The rate constant for the reaction is 8500 L/mol-s. If the OH- concentration is 2.2 x 10-4 M and the CO2 concentration is 0.44 g/L, calculate the rate of the reaction.
- The reaction 2 NO2(g) → N2O4(g) occurs directly in a single step. If N2O4 is formed at the rate of 0.500 mol/L-min when the concentration of NO2 is 2.00 mol/L, what is the rate of formation of N2O4 when the concentration of NO2 is 1.00 mol/L? (Assume that the temperature remains constant.)
- For which reaction, A or B, are the following true?
(A) CH3Cl + OH- → CH3OH + Cl-
(B) (CH3)3CCl + OH- → (CH3)3COH + Cl-- The reaction is second-order overall
- The reaction has a two-step mechanism
- The reaction proceeds through an intermediate with a positive charge
- The transition state of the rate-determining step contains both OH and Cl partially bonded to carbon
- The reaction has two transition states
- Give a correctly labeled reaction profile for the reaction
(CH3)3CCl + OH- → (CH3)3COH + Cl-