Question

If 5.85 gms of nacl are dissolved in 90 gms of water the mole fraction of nacl is

Answer 1

Hey buddy! Here's your answer!

58.5 g => 1 mole of NaCl

5.85 g => x mole

x = 0.1 mole of NaCl

18 g => 1 mole of H2O

90 g => x mole

x = 5 mole of H2O

Mole Fraction = (No. of mole of NaCl) / (No. of mole of NaCl + No. of mole of H2O)

                       = 0.1 / 5.1

Mole Fraction = 0.0196

Hope this helps! :)