MDCAT Chemistry MCQ #5131

For the reaction A + B -> C, the rate law is rate = k[A][B]. If the initial concentrations of A and B are 0.1 M and 0.2 M, respectively, and k = 0.05 M^-1s^-1, what is the initial rate of reaction?

MDCAT Chemistry MCQ #5131

  1. Question 1

    Q1. For the reaction A + B -> C, the rate law is rate = k[A][B]. If the initial concentrations of A and B are 0.1 M and 0.2 M, respectively, and k = 0.05 M^-1s^-1, what is the initial rate of reaction?

    • A) 0.001 M/s
    • B) 0.01 M/s
    • C) 0.0001 M/s
    • D) 0.1 M/s

    Answer: 0.001 M/s

    Explanation: Initial rate = k[A][B] = 0.05 * 0.1 * 0.2 = 0.001 M/s.