80 g of sugar was dissolved in 100 g of water. Calculate the mass fraction of sugar in the resulting solution.

The solution consists of two components: water weighing 100 grams and sugar weighing 80 grams.

The mass of the solution is equal to the sum of their masses:

m solution = 100 + 80 = 180 grams.

To find the mass fraction of salt, we divide the mass of salt by the mass of the solution:

C = m sugar / m solution = 80/180 = 0.4444 = 44.44%;