For a new chemical reaction involving several reactants, the order of reaction w

Question

For a new chemical reaction involving several reactants, the order of reaction with respect to each reactant Select one: a. may be determined from the coefficient for the respective reactant in the balanced chemical equation b. is easily determined from reactions similar to the one in question. c. must be determined experimentally using one or more methods d. must be determined from the overall order of the reaction d. must be determined from the rate constant at time = 0. Calculate the average reaction rate for the reaction of Cresol Violet with hydroxide going from 30 to 80 seconds using the following data.

Explanation / Answer

SOLUTION:

Q1. The order of a reaction with respect to a reactant can only be found experimentally. Hennce option (C) is the correct answer.

Q2.

Average rate = Change in concentration / Time interval = (C2 - C1) / (T2 - T1)

Average rate = (1.990 X 10-8 - 4.29 X 10-9) / (80s - 30s) = 1.561 X 10-8 / 50 = 3.122 10-9 ML-1/s

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