Question

10 grams of sodium carbonate is present in 120 grams of its aqua solution then the mass percentage is​

Answer 1

Answer:

MASS %= mass of solute /mass of solution ×100

=20/120*100

=100/6

=16.66%

Answer 2

$Mass\% = \frac{Mass \: of \: solute}{Mass \: of \: solution} \times 100 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{10}{120} \times 100 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{100}{12} = 8.33\%$