hi every body .
an aques solution contains 31.95 grams of Na2SO4 per 500 grams H2O . what is the vapor pressure in torr of this solution at 80ْC ? Pْ of H2O at 80 ْC = 355 torr
the moleculer mass of Na2SO4 = 142 g\mole
the answer will be 346 torr
Hopefully that will get me some sympathy and somebody can just show me how to do this.
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Topic: vapor pressuer (Read 2686 times)