Solutions Question 302

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

Options:

A) 2.70 M

B) 1.344 M

C) 1.50 M

D) 1.20 M

Show Answer

Answer:

Correct Answer: B

Solution:

From the molarity equation. M1V1+M2V2=MV

M=M1V1+M2V2V where V=V1+V2

M=480×1.5+520×1.2480+520=1.344M



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