Question 51
Concentrated nitric acid is labelled as 75% by mass. The volume in mL of the solution which contains 30 g of nitric acid is ____. Given : Density of nitric acid solution is 1.25 g/mL .
Solution
Mass of HNO₃ = 30 g. In 75% solution: mass of solution = 30/0.75 = 40 g. Volume = 40/1.25 = 32 mL.
The correct answer is Option 2: 32.
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