43. Solution to Chemistry Problem

43. Solution to Chemistry Problem

7. A solution of substances A and B of a given concentration; the density of this solution at temperature T is d: 1) determine the molar concentration — the number of moles of the dissolved substance in 1 liter of solution; 2) determine the molar concentration — the number of moles of the dissolved substance per 1 kg of solvent; 3) calculate the molar fraction of substance A as a percentage; 4) determine the number of moles of solvent per 1 mole of the dissolved substance.
Option N Mass content Substance T,K d*10-3, kg/m3 A, % A B
7 63 CBr3CHO H2O 313 1.725

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