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Grade: 9
        
Calculate mass by volume percentage of 15 percentage  solution of sulphric acid with dencity 1.2gm/l^1
one year ago

Answers : (1)

Arun
23006 Points
							
15% acid = 15g/100ml
Density is 1.02g/ml, so that makes 15gm in 102gm of solution
Now subtracting the weight of acid from the total weight of the solution
= 102 g – 15 g
= 87 g of water
To find out how much acid is present in 100g of water, we do the following,
100ml x 87g /15g
= 17.24/100 g of water
The density of water is said to be 1g/ml, therefore its concentration will be 17.24/100 ml or 100g of water
Hence,
The mass by volume percentage of H2SO4 will be 17.24% w/w
 
one year ago
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