Question

A solution is prepared by dissolving 10g of Naoh in 90g
of water Calculate the mole fraction fraction of each
Component?​

Answer 1

Answer:

NaOH solution is prepared in water.

Molar mass of NaOH=40 g

Mass of NaOH=10 g

Molar mass of water = 18 g

Given mass of water = 90 g

Number of moles of NaOH=

40

10

=0.25 moles

Number of moles of H

2

O=

18

90

=5 moles

Mole fraction of NaOH=

0.25+5

0.25

=0.047