09. Solving a chemistry problem

09. Solving a chemistry problem

37. 10.00 ml of a mixture of technical sulfuric and phosphoric acids was introduced into a volumetric flask with a capacity of 500.0 ml and filled to the mark with water. 25.00 ml of this solution was titrated with 26.40 ml of NaOH solution [T(NaOH/HCl)=0.003600] against methyl orange. When titrating the same sample with phenolphthalein, 40.00 ml of NaOH solution was consumed. What mass of H2SO4 and H3PO4 was contained in 1 liter of the initial mixture?

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