106 Задачка по химии №010 599

V milliliters of a solution obtained by dissolving m in grams of a substance in water has a density equal to ρ. Calculate the molar, normal and percentage concentration of the solution.
Numerical values of V, mv and ρ: V=400ml, mv=84.2g, ρ=1.19 g/cm3.
The solute is sodium carbonate Na2CO3

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