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JEE · NEET Previous Year Question

$The Molarity (M) of an aqueous solution containing 5.85 g of NaCl in 500 mL water is : (Given : Molar Mass Na : 23 and Cl : 35.5 gmol^{- 1})$

Topic: JEE PYQ

Answer: D. Full step-by-step solution below.

A $2$
B $20$
C $4$
D $0.2$

Correct answer: D

Solution

(d) M = \frac{n _{NaCl}}{V _{sol} ( in L )} M = \frac{\frac{5.85}{58.5}}{0.5} = 0.2 M

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