Two solution A and B, each of 80L was ma...

Two solution A and B, each of 80L was made by dissolving 4 gm NaOH and 9.8gm of `H_2SO_4` in water respectively. The pH of the resultant solution obtained by mixing 40L of solution A and 20L solution B is….. [Atomic mass H = 1, O = 16, Na = 23 S = 32]

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Result solution contain only `Na_(2)SO_(4)`. pH of salt made up of strong acid and strong base is 7.

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