Question

The rate law for a hypothetical reaction is rate = k [A][B]. If the concentrations of A and B are both 0.020 moles per liter and k = 1.3 × 10-1 M-1s-1, what is the reaction rate?
a. 4.0 × 103 M

b. 1.3 × 10-1 M-1s-1

c. 5.2 × 10-5 Ms-1

d. 5.2 × 105 Ms-1

Answer 1

The answer is c. 5.2 * 10^-5 Ms-1. The rate law for this reaction is given. So you only need to replace the letter with number given. And also calculate the unit. Then you can get answer.