30. Solving a chemistry problem
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2. A portion of technical nitric acid 1.0100 g was transferred into a solution containing 25.00 ml of 0.5020 M NaOH solution. The excess NaOH remaining after the reaction was titrated with 10.50 ml of 0.1010 M HCl. Calculate the mass fraction of HNO3 in the acid.
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