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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEC
Chapter: Solutions

Olympiad workbook · NSEC · Solutions

The mass (g) of NaCl that has to be dissolved to reduce the vapour...

The mass

(\mathrm{g})

of NaCl that has to be dissolved to reduce the vapour pressure of 100 g of water by

10 \% \left(\right.

Molar mass of \left.\mathrm{NaCl}=58.5 \mathrm{~g} \mathrm{~mol}^{-1}\right)

is

Options

A36.11 g
B17.54 g
C81.25 g
D3.61 g

Correct answer

B. 17.54 g

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