A solution consists of one part of chemical A to two parts of chemical B. The total volume needed is 150 mL. How much of each chemical will be needed?
What will be an ideal response?
There is a total of three (3) parts in the solution; the total volume is 150 mL. 
mL; therefore, each part = 50 mL
50 mL of chemical A will be needed.
(2) (50) = 100 mL of chemical B will be needed.
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