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how many litres of water must be added to 1 litre of an aqueous solution of HCl with a PH of 1 to create an aqueous solution with PH of 2
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Initial pH = 1, i.e. [H+] = 0.1 mole/litre
New pH = 2, i.e. [H+] = 0.01 mole/litre
In case of dilution: M₁V₁ = M₂V₂
0.1 ×1 =0.01 × V₂
V₂ = 10 litre.
Volume of water added = 9 litre.
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