Calculate the concentration in % (m/m) of a solution containing 20.5 g of LiF dissolved in 340.0 g of H2O.

a.1.14% (m/m)
b.5.69% (m/m)
c.6.03% (m/m)
d.6.42% (m/m)

2 answers

% by mass = [(mass solute)/(mass solute+mass solvent)]*100 = ?
b) 5.69