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August 23, 2014

Posts by Wren


Total # Posts: 2

Chemistry
The pH of an acid solution is 5.90. Calculate the Ka for the monoprotic acid. The initial acid concentration is 0.10 M. What I have done: pH = 5.9 a = 10^-5.9 = 1.2589 * 10^-6 Ka = [H+][A-]/[HA] Ka = (1.2589*10^-6)^2/(.01-1.2589) I got -1.26903013E-12, but it's not ...
July 19, 2014

Precalc
Find a4 for the arithmetic series with s4=-36 and a1=9
July 21, 2012

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