Question

In the mole fraction of acetone in ethyl alcohol is 0.3,then the molality of acetone in solution is?​

Answer 1

$\large\bold{\textsf{\red{ANSWER}}}$

★ Given clearly that 1 molal of aqueous solution hence the solvent here is water.

★Therefore 1 mole solute present in the 1 kg of water. Molefraction is the ratio of the number of moles of solute and total number of moles in solution.

★ Moles = (given mass) / (molar mass) = 1000/18 = 55.5 moles !