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 $ .
