93. Solving a chemistry problem
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Product description
At a temperature T, the vapor pressure of a solution of concentration c, % of an unknown non-volatile substance in a liquid solvent is equal to P Pa; the density of this solution d. The dependence of saturated vapor pressure on temperature over a liquid and solid pure solvent is given in the table:
- calculate the molecular weight of the solute;
- determine the molar and molar concentrations of the solution;
- calculate the osmotic pressure of the solution;
- build a curve P - f (T) for a given solution and solvent;
- determine graphically the temperature at which the vapor pressure over a pure solvent will be equal to R Pa;
- determine graphically the increase in the boiling point at pressure P of a solution of a given concentration c;
- calculate the ebullioscopic constant in all possible ways and compare these values with each other at normal boiling point (T n.t.c.)
- determine the drop in freezing point
- calculate the cryoscopic constant
Variant No. Mass content of non-volatile matter. % Molecular weight of the solvent R, Pa T. K d •10-3kg/m3
8 7 46 2375 283.2 1.210
Additional information
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