81. Solving a chemistry problem
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81. Solving a chemistry problem
64. Calculate the molar concentration of solutions of hydrochloric acid and sodium hydroxide if 22.15 ml of hydrochloric acid solution is used to titrate 0.7841 g of Na2B4O7•10H2O. Volume ratio (average value) V(HCl)/V(NaOH) = 1.026.
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