Question

Find the mode fraction of sodium in sodium chloride, if the amount of sodium is 90g.​

Answer 1

Answer:

Given:-

Mass of NaCl=5.85g

Mass of H

2

O=90g

Number of moles of NaCl=

58.5

5.85

=0.1

Number of moles of H

2

O=

18

90

=5

Mole fraction of solute=

n

solute

+n

solvent

n

solute

Mole fraction=

5+0.1

0.1

⇒X

B

=0.0196