Question

Известно масса раствора 200грамм и массовая доля 10%.Найти массу растворенного веществами массу растворителя?

Answer 1

1) Формула w=m вещества*100%/ m раствора, значит
m вещества= w* m раствора/ 100%
=10% * 200г/100%= 20г
2) m растворителя= m р-ра-m в-ва= 200г- 20 г= 180 г

Answer 2

Calculating Mass of Solute and Solvent in a Solution

To find the mass of the solute and the mass of the solvent in a solution, we can use the formula:

Mass of Solute = Mass of Solution × Mass Fraction of Solute

Mass of Solvent = Mass of Solution - Mass of Solute

Given: - Mass of the solution = 200 grams - Mass fraction of the solute = 10%

Calculations

Using the given information and the formula, we can calculate the mass of the solute and the mass of the solvent:

Mass of Solute: - Mass of Solute = 200 grams × 10% = 200 grams × 0.10 = 20 grams

Mass of Solvent: - Mass of Solvent = 200 grams - 20 grams = 180 grams

Therefore, the mass of the solute in the solution is 20 grams, and the mass of the solvent in the solution is 180 grams.

This calculation is based on the formula for calculating the mass of solute and solvent in a solution and the given mass fraction of the solute.

If you have any further questions or need additional assistance, feel free to ask!