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Q.

Find the sum of molarity of all the ions present in an aqueous solution of 5M NaNO3 and 3 m BeCl2? The specific gravity of the given solution is 1.665. Assume 100% dissociation of each salt. [Be=9]

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answer is 19.

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Detailed Solution

Let 1 L of solution is taken

3=n×10001665−5×85−80×n

⇒n=3

Na+=5,NO3−=5,Be2+=3,Cl−=6

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