Answer :
The mass of pure acetic acid in 220 ml of the given solution at 20°C is 92.311 g
What is Acetic acid?
Acetic acid is a type of carboxylic acid and also known as ethanoic acid
Its formula is CH₃COOH.
It is an organic compound and is a colorless liquid
It is mostly used in the production of vinegar
40 % acetic acid by mass means,
40 g of acetic acid is dissolved in 100 g of solution.
The density of solution at 20°C,
[tex]\rho = 1.049 g/ml[/tex]
We know,
[tex]\rho = \frac{m}{V}[/tex]
[tex]V = \frac{m}{\rho}[/tex]
The volume of the solution, [tex]V = \frac{100}{1.049}[/tex] = 95.33 ml
95.33 ml of solution contains 40 g of pure Acetic acid
220 ml of solution contains[tex]\frac{40 \times 220}{95.33}[/tex] = 92.311 g of pure Acetic acid
Thus, the mass of pure Acetic acid in 220 ml of solution at 20°C is 92.311 g
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