Solutions Question 145

Question: If 5.85 g of NaCl (molecular weight 58.5) is dissolved in water and the solution is made up to 0.5 litre, the molarity of the solution will be [AMU 1999; Pb PMT 2000; AFMC 2001]

Options:

A) 0.2

B) 0.4

C) 1.0

D) 0.1

Show Answer

Answer:

Correct Answer: A

Solution:

$ M=\frac{w}{m.,wt.\times \text{volume in}litre}=\frac{5.85}{58.5\times 0.5}=0.2M $



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