calculate weight of H2 S o4 we should be dissolved in thousand litre of water to change its pH by 4 units
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Answer:
49 gm
Explanation:
pH (initial) = 7
pH (final) = 7 - 4 = 3
[H+] = 10^-ph= 10^-3
[H2SO4] = 10^-3/2
no. of moles = Molarity × volume
= 10^-3/2 × 1000
n = 1/2
mass/ wt. = moles ×Molecular mass
= 1/2 × 98
= 49 gm
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