Question

В 200 г воды растворили 5 г соли. Найти массовую долю соли в растворе

Answer 1

Ответ:

315г соли

Ca2+Na+So2+H2o

Объяснение:

Answer 2

To find the mass fraction of salt in the solution, you can use the formula:

Mass fraction of salt = (mass of salt) / (mass of water + mass of salt)

Given that 200 g of water is used to dissolve 5 g of salt, the mass fraction of salt can be calculated as follows:

Mass fraction of salt = 5 g / (200 g + 5 g)

Mass fraction of salt = 5 g / 205 g

Now, to express the mass fraction as a percentage, you can multiply it by 100:

Mass fraction of salt = (5 g / 205 g) * 100%

Mass fraction of salt ≈ 2.44%

So, the mass fraction of salt in the solution is approximately 2.44%.