A solution of H2SO4 acid is labelled is 95%. What is the mass of this that must be diluted with water to get 5L of solution containing 10g of H2SO4 per litre?

The solution is:

1L of the diluted solution must contain 10g of H2SO4.
Therefore, 5L of the diluted solution must contain 50g of H2SO4.
The concentration of the acid in the bottle is 95%.
This means that
95g of H2SO4 is present in 100g of the acid solution
50g of H2SO4 will be present in
50 * 100 / 95
52.64g of the solution

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Nice Q
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nice question but hard!!
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Use the formulas ....
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