Question

. A solution contains 30g of NaCl in 600g of water. Calculate the concentration of this solution using the concentration term ‘mass by mass percentage’.

Answer 1

Dear student,

Weight of NaCl = 30 g
Weight of H₂O = 600 g
Weight of solution = 30 + 600 = 630 g

The concentration of solution = $\frac{Massofsolute}{Massofsolution}\times 100$
Concentration = $\frac{30}{630}\times 100$ = 4.76 %

Hence, the concentration in terms of mass by mass percent is 4.76 %.

Regards