Question #192191

To neutralize 100 g of HNO3 solution, 30 cm3 of 15% NaOH solution with a density of 1.15 g / cm3 was used. Calculate the mass fraction (in%) of nitric acid in the solution!

Expert's answer

Let the mass of the total solution =100 gm

So mass of the becomes=15 gm {That is 15% of the mass of the solution}

Molarity of NaOH

Moles of NaOH required

Moles of needed

Mass of

Now mass fraction of %

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