Solutions Question 407

Question: The molarity of a solution of $ Na_2CO_3 $ having $ 10.6g/500ml $ of solution is [AFMC 1992; DCE 2000]

Options:

A) $ 0.2M $

B) $ 2M $

C) $ 20M $

D) $ 0.02M $

Show Answer

Answer:

Correct Answer: A

Solution:

$ M=\frac{w\times 1000}{m.,wt.\times Volumein,ml.} $

$ =,\frac{10.6\times 1000}{106\times 500}=0.2,M $ .



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