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Find the pH of each of the following solutions of mixtures of acids.
a) 1.5 x 10-2 M in HBr and 1.5 x10-2 M in HClO4
b) 9.0 x 10-2 M in HF and 0.230 M in HC6H5O
c) 0.100 M in formic acid and 4.5 x 10-2 M in hypochlorous acid.
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