Question

В 80г. воды растворили 30г. серной кислоты Найти массовую долю кислоты полученном растворе

Answer 1

Масса подученного вещества=80+30=110 грамм
Массовая доля=30:110=0,3*100%=30%

Answer 2

Calculating the Mass Fraction of Sulfuric Acid in the Solution

To find the mass fraction of sulfuric acid in the solution, we can use the following formula:

Mass Fraction = (Mass of Solute / Total Mass of Solution) × 100%

Given: - Mass of water (H2O) = 80g - Mass of sulfuric acid (H2SO4) = 30g

First, we need to calculate the total mass of the solution:

Total Mass of Solution = Mass of Water + Mass of Sulfuric Acid

Total Mass of Solution = 80g + 30g = 110g

Now, we can calculate the mass fraction of sulfuric acid in the solution:

Mass Fraction of Sulfuric Acid = (30g / 110g) × 100%

Mass Fraction of Sulfuric Acid ≈ 27.27%

So, the mass fraction of sulfuric acid in the solution is approximately 27.27%.