Question

A solution contains 50 g of sugar in 350 g of water. Calculate the concentration of solution in terms of massby-mass percent of the solution

Answer 1

$\frac{50}{350 + 50} \times 100 \\ = \frac{50}{400} \times 100 \\ = 12.5 \: \%$

Answer 2

C% = Msolute/Msolution * 100
Let
Msolute= 50g
Msolvent = 350g
Msolution= Msolute + Msolvent
50+ 350=400g
Apply formula
C% = 50 / 400 * 100 = 12.5%
Therefore the concentration percentage is 12.5%