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 $1.25 g / mL$ .

Question

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 .

TestHub · Accepted Answer

75% by mass means : ∵ 75 g HNO 3 ​ in 100 g solution. ∴ 30 g HNO 3 ​ in 75 100 ​ × 30 g solution. ∵ ​ m solution ​ = 75 100 × 30 ​ g V sol ​ = d sol ​ m sol ​ ​ = 75 × 1.25 100 × 30 ​ = 32 mL ​

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