Question

A 44% wt/wt solution of H2SO4 has a density of 1.343g/ml. What mass of H2SO4 is 60ml of this solution?

Answer 1

Answer: The mass of sulfuric acid present in 60 mL of solution is 34.1 grams

Step-by-step explanation:

We are given:

44 % (m/m) solution of sulfuric acid. This means that 44 grams of sulfuric acid is present in 100 grams of solution.

To calculate volume of a substance, we use the equation:

`\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}`

Density of solution = 1.343 g/mL

Mass of solution = 100 g

Putting values in above equation, we get:

`1.343g/mL=\frac{100g}{\text{Volume of solution}}\\\\\text{Volume of solution}=(100g)/(1.343g/mL)=77.46mL`

To calculate the mass of sulfuric acid present in 60 mL of solution, we use unitary method:

In 77.46 mL of solution, mass of sulfuric acid present is 44 g

So, in 60 mL of solution, mass of sulfuric acid present will be =
`(44g)/(77.46mL)* 60mL=34.1g`

Hence, the mass of sulfuric acid present in 60 mL of solution is 34.1 grams