29. Solving a chemistry problem
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29. Solving a chemistry problem
16. Express the composition of the resulting solution in terms of mass%, molality, molar concentration, molar fractions, molar concentration of the equivalent, if: 70 ml of an aqueous solution of K2CO3 with a composition of 4 mass% with a density of 1.0345 g/cm3 was mixed with 130 ml of an aqueous solution of K2CO3 with a composition of 10 mass % density 1.0904 g/cm3.
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