Question

20 г сахара и 30 г соли растворили в 100 г воды. Найдите процентное содержание сахара и соли в этом растворе?

Answer 1

Могу предложить решение пропорцией.
Итак: было воды 100 гр, соли 30 гр и сахара 20 гр, значит, в итоге мы имеем 150-граммовый раствор - это наши 100%.
По сахару:
150/20=100/x
x=100*20/150=13,3%

По соли:
150/30=100/x
x=100*30/150=20%
Полагаю так.

Answer 2

Calculation of Percentage Content of Sugar and Salt in the Solution

To find the percentage content of sugar and salt in the given solution, we need to calculate the mass of sugar and salt in the solution and then divide it by the total mass of the solution.

Given: - Mass of sugar = 20 g - Mass of salt = 30 g - Mass of water = 100 g

To calculate the percentage content of sugar and salt, we need to find the mass of the solution first. The mass of the solution is the sum of the masses of sugar, salt, and water:

Mass of solution = Mass of sugar + Mass of salt + Mass of water

Substituting the given values:

Mass of solution = 20 g + 30 g + 100 g = 150 g

Now, we can calculate the percentage content of sugar and salt in the solution:

Percentage content of sugar = (Mass of sugar / Mass of solution) * 100%

Substituting the values:

Percentage content of sugar = (20 g / 150 g) * 100% = 13.33%

Percentage content of salt = (Mass of salt / Mass of solution) * 100%

Substituting the values:

Percentage content of salt = (30 g / 150 g) * 100% = 20%

Therefore, the percentage content of sugar in the solution is approximately 13.33%, and the percentage content of salt in the solution is 20%.