What is the mass fraction of salt in a solution obtained by mixing 28 g of potassium sulfate and 263 ml of water?
| February 22, 2021 | education
The mass of 1 ml of water under normal conditions is approximately equal to 1 g. Therefore, 263 ml of water = 263 g.
Potassium sulfate solute mass = 28 g.
The mass of the solution obtained after mixing the substances = mass of the solvent + mass of the solute = 28 g + 263 g = 291
Mass fraction of solute = mass of solvent / mass of solution = 28/291 = 0.096 = 9.6%
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.
