Question

What is the initial rate of reaction if [oxalic acid]=0.030 M; [KMnO4] = 0.050 M? Table II Experiment M Oxalic Acid* M KMnO₄ Average Time of Reaction, s Reaction Rate [KMnO₄] / s 1 0.25 0.02 387 sec 5.60 2 0.25 0.04 387 sec 1.12 3 0.50 0.02 194 sec 1.12

Answer 1

The initial rate of reaction can be estimated to be around 5.60 s^-1 when [H2C2O4] = 0.030 M and [KMnO4] = 0.050 M.

Step-by-step explanation:

The initial rate of reaction can be calculated by using the average reaction rate from the given table. In experiment 1, the average reaction rate was 5.60 s-1 when the concentration of oxalic acid ([H2C2O4]) was 0.25 M and the concentration of KMnO4 was 0.02 M. During experiment 2, when the concentration of KMnO4 increased to 0.04 M, the average reaction rate decreased to 1.12 s-1. Therefore, the initial rate of reaction can be estimated to be around 5.60 s-1 when [H2C2O4] = 0.030 M and [KMnO4] = 0.050 M.