Question

By dissolving $0.35$ mole of sodium chloride in water, $1.30l$ of salt solution is obtained. The molarity of the resulting solution should be reported as:

• A. $0.3$
• B. $0.269$
• C. $0.27$
• D. $0.2692$

Answer 1

The correct option is C $0.27$

By dissolving $0.35$ mole of sodium chloride in water, $1.30l$ of salt solution is obtained. The molarity of the resulting solution should be reported as $0.27$.

Molarity $=\frac{\text{Moles of NaCl}}{\text{Volume of solution}}=\frac{\text{0.35 moles}}{\text{1.30 L}}=\text{0.27 M}$

Hence, the option (C) is the correct answer.