Question

5.3gm of na2co3 is dissolved in 108gm of water. The mole fraction of na2co3 is​

Answer 1

Answer:

0.00826

mole of 5.3 gm of Na2CO3 = 5.3 gm/ 106 gm/mol = 0.05 mole

mole of 108 gm of water = 108 gm/ 18 gm/mole = 6 mole.

so, mole fraction of Na2CO3 = 0.05 /( 0.05 + 6) = 0.00826 .