Solutions Question 165

Question: Two solutions of a substance (non electrolyte) are mixed in the following manner 480 ml of 1.5M first solution + 520 mL of 1.2M second solution. What is the molarity of the final mixture [AIEEE 2005]

Options:

A) 1.20 M

B) 1.50 M

C) 1.344 M

D) 2.70 M

Show Answer

Answer:

Correct Answer: C

Solution:

$ M_1V_1+M_2V_2=M_3V_3 $ ; $ 1.5\times 480+1.2\times 520=M\times 1000 $

$ M=\frac{720+624}{1000} $

$ =1.344,M $ .



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