What is the result when you total the individual percent abundances?
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Ответ:
%Abundance = part / total *100
%Abundance_1 = parts_1 / total * 100
%Abundance_2 = parts_2 / total * 100
%Abundance_3 = parts_3 / total * 100
%Abundace_1 + %Abundace_2+%Abundace_3 = parts_1/total *100 + parts_2/total*100 + parts_3/total*100
Factor the right side:
%Abundace_1 + %Abundace_2+%Abundace_3 = [parts_1+parts_2+part2_3]/total *100
Given the sum of the parts = total
%Abundace_1 + %Abundace_2+%Abundace_3 = [total]/total *100 = 100
So, the sum of the individual % of abundaces is 100 %.
Ответ:
The basic equation for diluting solutions is:
(M1)(V1) = (M2)(V2)
M1 and V1 belong with the stock solution, the stronger one.
The mL has to be turned into liters, so convert first. 175 mL = .175 L
So, 1.6 M represents M1 and .175 L represents V1. 1.0 is V2 because it's asking for the new concentration, which is M2. Therefore, M2 is the variable you're looking for.
Plugging it in:
(1.6M)(.175) = (M2)(1)
Simplify and Solve:
.28 = M2