60 g of salt was dissolved in 240 g of water. determine the mass fraction of salt in the resulting solution.

They took all the water – 240 g.

Added salt to water – 60 g.

Determine the mass fraction of salt in this solution.

First, add the salt and the mass of water, that is, you need to determine the mass of the entire resulting solution.

m solution = 240 + 60 = 300 g.

Next, it is necessary to determine the mass fraction of the taken salt in the solution. To do this, divide the mass of salt by the mass of the solution. We write down the resulting solution.

W = 60/300 * 100% = 20%.

This means that the mass fraction of salt in the solution is 20%.

Answer: W = 20%.