J.R. S. answered 02/26/20
Tutor
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Ph.D. in Biochemistry--University Professor--Chemistry Tutor
If you mean you are dissolving the 46.41 g NaCl in 168.8 g of SOLVENT, then we can proceed as follows:
Total mass = 46.41 g + 168.8 g = 215.2 g
mass % NaCl = 46.41 g/215.2 g (x100%) = 0.2157
mass % solvent = 168.8 g/215.2 g (x100%) = 0.7844