Question

В 200 г воды растворили 200 г соли найти массовую долю элемета соли в растворе

Answer 1

Привет! Сейчас решим

m(р-ра) = 200+200 = 400 г

w(соль) = 200:400 = 0,5 или 50%

Готово! Есть вопросы? Напиши и я отвечу

Answer 2

To find the mass fraction of the solute (salt) in the solution, we need to divide the mass of the solute by the total mass of the solution (solute + solvent) and then multiply by 100 to express it as a percentage.

Given: Mass of water = 200 g Mass of salt (solute) = 200 g

Total mass of the solution = Mass of water + Mass of salt = 200 g + 200 g = 400 g

Now, to find the mass fraction of the solute (salt) in the solution:

Mass fraction of solute (salt) = (Mass of salt / Total mass of solution) * 100 Mass fraction of solute (salt) = (200 g / 400 g) * 100 Mass fraction of solute (salt) = 0.5 * 100 Mass fraction of solute (salt) = 50%

The mass fraction of the salt in the solution is 50%.