Question

Calculate the mass of a non-volatile solute (molar mass 40 g mol ) wh should be dissolved in octane to reduce its vapour pressure to 80%

Answer 1

Answer:

Explanation:

Ps=(80100)P0

m=40,W=114g,M=114

P0−PsPs=w×Mm×W

(Or) P0−(80/100)P0(80/100)P0=w×11440×114

∴w=10g