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

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1.344

2.34

4.34

5.34

answer is A.

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Detailed Solution

Molarity of mixture ‘M-mix’ can be calculated by:M-mix = =M1V1+M2V2V1+V2=1.5×480+1.2×520480+520=720+6241000 = 1.344 M

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