Question

В 500г воды растворили 20г соли. Определите массовую долю соли в полученном растворе.

Answer 1

Решение во вложении. Отмечай лучшим!!!!

Answer 2

To determine the mass fraction (mass percentage) of the salt in the solution, we can use the following formula:

Mass fraction of salt = (mass of salt / total mass of solution) * 100%

First, we need to calculate the total mass of the solution, which is the sum of the mass of water and the mass of salt:

Total mass of solution = Mass of water + Mass of salt Total mass of solution = 500g (given) + 20g (given) Total mass of solution = 520g

Now, we can calculate the mass fraction of salt:

Mass fraction of salt = (20g / 520g) * 100% Mass fraction of salt = (0.0384615) * 100% Mass fraction of salt ≈ 3.85%

So, the mass fraction of salt in the solution is approximately 3.85%.