Which acid will most likely have the lowest pH? OHCl(aq) O H3PO4(aq) O HNO2(aq) O HF(aq)...

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Question

Answer 1

Answer #1

Ans: HCl (aq)

The lower the pH of an acidic solution, the stronger is the acid.

HCl when dissolved in water dissociates completely (100%) to give protons in the solution, since it is a very strong acid.

H3PO4 is also a strong acid but not as strong as HCl.

HNO2, HF and HC2H3O2 are all weak acids.

Answer 2

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