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 $
