Calculate the [OH] in a solution with pH = 13.20 2.61 x 10-8 M
6.31 x 10-14 M
0.80
0.158

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

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