Calculate the mole fraction of glycerine () in an aqueous solution containing of water and of glycer — Solutions and Colligative Properties Chemistry Question

💡 Solution & Explanation

Molar mass of water $= 18\text{ g/mol}$. Moles of water $= \frac{36}{18} = 2\text{ mol}$. Molar mass of glycerine $= 92\text{ g/mol}$. Moles of glycerine $= \frac{46}{92} = 0.5\text{ mol}$. Mole fraction of glycerine $= \frac{0.5}{2 + 0.5} = \frac{0.5}{2.5} = 0.2$.