Question

4g of NaOH are dissolved in 90 mL of water. The
mole fraction of NaOH in water is
Ans?

Answer 1

Answer:

Explanation:

4gm NaOH + 90ml of H2O

n=4/40=1/10 for NaOH

n=90/22400 = 9/2240 for H2O

Moles for NaOH

1/10 / 1/10+9/2240 = 0.961