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In: Chemistry

The reaction 2HI --> H2 + I2 is second order in [HI] and second order overall....

The reaction 2HI --> H2 + I2 is second order in [HI] and second order overall. The rate constant of the reaction at 700 degrees celsius is 1.57 x 10-5 M-1 s-1. Suppose you have a sample in which the concentration of [HI] is 0.75 M. What was the concentration of HI 8 hours earlier?

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