JEE Main 2025 Jan 28 Shift 2, Chemistry Q10: Types Concentration And Solubility of Solutions

JEE Main2025Jan 28, Shift 2Chemistry

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

From the 75% w/w label, the mass of solution that contains 30 g of $H N O_{3}$ is

$m_{so l n} = \frac{30}{0.75} = 40 g$ .

Using density to convert mass to volume,

$V = \frac{m _{so l n}}{ρ} = \frac{40 g}{1.25 g/mL} = 32 mL$ .

Concept behind this question

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