106. Solving a chemistry problem
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106. Solving a chemistry problem
9. Mixed 10 ml of a nitric acid solution with a mass fraction of HNO3 10%, a density of 1.056 g/ml and 100 ml of a solution of nitric acid with a mass fraction of HNO3 of 30%, a density of 1.184 g/ml. Calculate the mass fraction of HNO3 in the resulting solution.
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