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15.35

Posted: Wed Mar 07, 2018 8:45 am
by Abigail Volk 1F
In part a) you plug in 1/ .84/16 for [A] which flips and is basically 16/.84 but in part b) you get 1/ .84/4 for [A] and you don’t flip this one and get 1/.21. Why do you flip part a but not part b fraction wise?

Re: 15.35

Posted: Wed Mar 07, 2018 3:12 pm
by SantanaRodriguezDis1G
in Part A you are using the half life equation where in part b and c you use the formula: (1/[a]) = (1/[a]0) +kt and solve for t