Question

If 5.85 gms of NaCl are dissolved in 90 gms of water, the mole fraction of NaCl is..... ​

Answer 1

Answer:MOLE FRACTION=0.012

Explanation:5.85g=WB(MASS OF SOLUTE)

WA=90g(MASS OF SOLVENT)

Mb=23+35.5g/mol

Nb=5.85/90=0.065

NA=90/18=5

XB=NB/NA+NB

XB=0.065/5.065

MOLE FRACTION=0.012