Question

Calculate the mole fraction of Haso4
in a solution containing 98 percent Haso4
by mass.​

Answer 1

Answer:

0.90

Apply formula X = N/n+N

Explanation:

where X is mole fraction of H2SO4

N is number of moles of H2SO4

n is number of moles of water

Given : 98% H2SO4 by mass

(98 g H2SO4 + 2 g water)

Solution:

Moles of H2SO4 = w/Molarass

= 98/98

= 1

Moles of Water = 2/18

= 0.11

Mole fraction X = 1/(1+0.11)

= 1/1.11

= 0.90