Question

The mole fraction of water in 36 gm water
and 34 gm NH3 solution is
А
0.5
B
0.2
C
5
0.05
D​

Answer 1

Answer:

A - 0.5

Explanation:

Mole fraction n1/n1+n2

n1=36/18=2

n2=34/17=2

mole fraction 2/2+2

2/4=1/2=0.5

Answer 2

Answer:

A ) 0.5

Explanation:

n = weight/ molecular weight

n(H20) = 36/18 = 2

n( NH3) = 34/17 = 2

Mole fraction (X)

X( H20) = n(H20)/ n(H2O) + n(NH3(

= 2/2+2

= 2/4

=1/2

= 0.5 mol