A 5.2 molal aqueous solution of methyl alcohol

Asked by admin @ 26/08/2021 in Chemistry viewed by 315 People

A 5.2 molal aqueous solution of methyl alcohol is supplied. what is the mole fraction of methyl alcohol in the solution?

Answered by admin @ 26/08/2021

Hey !!

5.2 molal solution means 5.2 moles of the solute (CH₃OH) are present in 1000 g of water,

1000 / 18 moles = 55.55 moles of water.

∴ Mole fraction of CH₃OH

= 5.2 / 5.2 + 55.55

= 0.086

Hope it helps you !!

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