200 g of the solution contains 10 g. salt. What is the mass fraction of salt in the solution?

The solution consists of two components: water weighing 200 – 10 = 190 grams and salt weighing 10 grams.

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

m solution = 190 + 10 = 200 grams.

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

C = m salt / m solution = 10/200 = 0.05 = 5%;

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.