What masses of salt and water should be taken to prepare 200 ml of a solution with

What masses of salt and water should be taken to prepare 200 ml of a solution with a mass fraction of salt of 40% and a solution density of 1.13 g / ml?

Let’s find the mass of this solution:

mr-ra (salts) = pp-ra (salts) * Vr-ra (salts) = 1.13 * 200 = 226 (g).

Let’s find the mass of salt in this solution:

m (salts) = mr.-ra (salts) * w (salts) / 100 = 226 * 40/100 = 90.4 (g).

Let’s find the mass of water in this solution:

m (H2O) = mr.-ra (salts) – m (salts) = 226 – 90.4 = 135.6 (g).

Thus, to prepare this solution, you need to take 90.4 g of salt and 135.6 g of water.



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.