What masses of potassium chloride and water should be taken to prepare 80 g of a solution with a salt fraction of 0.2?
| March 27, 2021 | education
The mass of the solution is 80 grams;
To find the mass of salt, it is necessary to multiply its mass fraction by the mass of the solution.
m salt = 80 x 0.2 = 16 grams;
To find the mass of water, subtract the mass of salt from the mass of the solution:
m of water = 80 – 16 = 64 grams;
Check: 64 + 16 = 80;
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.
