5. 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=500 ml., mv=54.5g, ρ=1.09g/cm3.
The solute is potassium carbonate K2CO3.

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