Question

One particular solution is 74.5% by mass of a substance A. The density of the solution is 1.37 g/mL. A reaction requires 5.23g of A. What volume of solution is required?

Answer 1

Since the solution contains 74.5% by mass of A

1ml solution will contain, 1.37×74.5/100 = 1.02g of A per ml solution.

Since we need 5.23g of A, the required volume of the Solution will be 5.23g of A /1.02g of A/ 1ml solution = 5. 127ml.