Question

In concentration of Aqueous solutions find mass fraction and Mole Fraction using the volume fraction of 0.8629, Specific Gravity of solute of 0.4040 and molecular weight of solute of 59.00

Answer 1

Volume fraction $= \frac{Mass\; fraction}{Specific\; gravity}$

Mass fraction $= Volume \;fraction \times Specific\; gravity$

Mass fraction $= 0.8629 \times 0.4040 = 0.3487$

Mole fraction $= \frac{Mass \;fraction}{Molecular\; weight}$

Mole fraction $= \frac{0.6487}{59.00}= 0.0059$