# 20 g of salt, dissolved 230 g of water to determine the mass fraction of the solution.

July 26, 2021 | education

| To determine the mass fraction of a solution, you must use the formula:

w = m (solute) / m (total mass of solution) * 100%

The total mass of the solution is equal to the sum of the mass of water and solute:

m (total mass of solution) = 20 + 230 = 250 g

w = 20/250 * 100 = 8%

Answer: the mass fraction of the solution is 8%.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.