molality = W*1000/G.M.Wt * weight of solvent in g
Weight of solute (W) =
molality = 0.05m
Weight of solvent in g = 150g
Gram molar mass of NaCl = 58.5g/mole
molality = W*1000/G.M.Wt * weight of solvent in g
0.05 = W*1000/58.5*150
W = 0.05*58.5*150/1000 = 0.44g >>>>answer
mass of NaCl = 0.44g
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