Some measurements of the initial rate of a certain reaction are given in the table below:
[H2] [I2] initial rate of reaction
1.82 M 0.397 M 0.397 M/s
1.82 M 0.113 M 0.113 M/s
0.183 M 0.397 M 0.0399 M/s
Use this information to write a rate law for this reaction, and calculate the value of the rate constant k.
Round your value for the rate constant to 3 significant digits. Also be sure your answer has the correct unit symbol.