35. Solving a chemistry problem
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36. A sample of a mixture of hydrochloric and phosphoric acids with a volume of 5.00 ml was diluted to 200.0 ml. For titration of 20.00 ml of the resulting solution with methyl orange, 18.20 ml of 0.1012 M NaOH were used; when titrating the same sample solution with phenolphthalein, 34.70 ml of NaOH solution were consumed. What mass of HCl and H3PO4 was contained in 100 ml of the mixture?
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