Calculate the mass fraction of H2SO4 in 120 ml of solution if 17.10 ml of NaOH titrant (c1/zT) = 0.05 mol/L is consumed for a titration of 15 ml of this solution. The density of the solution H2SO4 = 1,174 g/ml. Write: a) reaction scheme; b) factors of equivalence of participants of reaction; c) the expression of the law of equivalents for this reaction; d) type of chemical reaction (titration method); e) indicator for determination of equivalence point (choice to explac)