15.17
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15.17
I'm a little confused as to how [C] is independent of the rate, as stated in the solutions manual.
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Re: 15.17
The rate doesn't depend on the concentration of C, which means it is independent, because the reaction is zero order with respect to C. If you compare experiments 1 and 4 (where the concentrations of A and B stay the same), the initial concentration of C changes but the initial rate doesn't change.
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Re: 15.17
compare the reaction rates when all other reactants remain constant except for C. The reaction rate doesn't change even though C does, meaning it isn't in the rate law because it is a zero order reactant.
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Re: 15.17
If you write the rate law, [C] will be to the zero power, meaning that [C] will always be equal to one, meaning it does not change the rate (so it is independent of the rate).
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Re: 15.17
As the others said, C is zero order because looking at experiments 1 and 4, even though the concentration of C changes, the initial rate remains the same. This means C has no impact and therefore its exponent is 0.
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