Posted by Zen on Saturday, June 19, 2010 at 11:27am.
You need to learn how to do this.
Punch 1.6 x 10^-5 into your calculator.
Hit the log button. You should get -4.79588 so the equation now looks like this.
pH = -log(H^+)
pH = -log(1.6 x 10^-5)
pH = -(-4.79588)
pH = 4.79588 which rounds to
pH = 4.80
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