Question

Сделайте задачку-какой станет массовая доля серной кислоты h2so4 в растворе полученном смешиванием 250г раствора с массовой долей вещества 10%со ста 50г раствора с массовой долей вещества 5%

Answer 1

Раствор. Кислота .вода
250г-------Х=25
100%--------10%
Раствор кислота вода
50г---------Х=2.5г
100%---------5%
25+2.5=27.5г
10%+5%=15%
27.5г------------15%
183.33=Хг----100%
Ответ: 183.33г

Answer 2

Calculation of the Mass Fraction of Sulfuric Acid in the Solution

To calculate the mass fraction of sulfuric acid (H2SO4) in the solution obtained by mixing 250g of a solution with a mass fraction of 10% and 50g of a solution with a mass fraction of 5%, we can use the following formula:

Mass Fraction = (Mass of Component / Total Mass) * 100

Let's calculate the mass fraction step by step:

1. Calculate the mass of sulfuric acid in the first solution: - Mass of the first solution = 250g - Mass fraction of sulfuric acid in the first solution = 10% - Mass of sulfuric acid in the first solution = (10/100) * 250g = 25g

2. Calculate the mass of sulfuric acid in the second solution: - Mass of the second solution = 50g - Mass fraction of sulfuric acid in the second solution = 5% - Mass of sulfuric acid in the second solution = (5/100) * 50g = 2.5g

3. Calculate the total mass of the solution: - Total mass of the solution = Mass of the first solution + Mass of the second solution = 250g + 50g = 300g

4. Calculate the mass fraction of sulfuric acid in the final solution: - Mass of sulfuric acid in the final solution = Mass of sulfuric acid in the first solution + Mass of sulfuric acid in the second solution = 25g + 2.5g = 27.5g - Mass fraction of sulfuric acid in the final solution = (27.5g / 300g) * 100 = 9.17%

Therefore, the mass fraction of sulfuric acid (H2SO4) in the solution obtained by mixing 250g of a solution with a mass fraction of 10% and 50g of a solution with a mass fraction of 5% is approximately 9.17%.