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Calculate the pH of 0.04 M HNO3 Solution. |
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Answer» Concentration of HNO3 = 0.04M [H3O+] = 0.04 mol dm-3 pH = -log[H3O+] = – log(0.04) = – log(4 x 10-2) = 2 -log 4 = 2-0.6021 = 1.3979= 1.40 |
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