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Because the half-life for zero order reactions is also dependent on initial concentration, would it be calculated similarly to 15.35 (second order) but using the half-life equation for a zero-order reaction? In other words, do we need to perform the same types of manipulations because initial concentration is a factor in zero-order half-lives?
I'm not really sure what manipulations you're talking about? All that matters in a 0th order half life is that t1/2=[A]0/2k. The manipulations you may be thinking about are how many half lives occur in a certain time span. You can find this by using the equation (1/2)^n=x, where x is the percentage of reactant remaining and n is how many half lives occur to reach that amount. For example, for 2 half lives to occur, n=2, thus there is 1/4 of the original reactant remaining.
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