# 2.4    Concentrated nitric acid used in laboratory work is nitric acid by mass in aqueous solution. What should be the molarity of such a sample of the acid if the density of the solution is

According to given question, in 100 g of solution 68 g is nitric acid and rest is water.

So moles of 68 g HNO3 :-

Density of solution is given to be 1.504.

So volume of 100 g solution becomes :-

Thus, molarity of nitric acid is :

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