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calculate H+ of the following mixure.
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Topic: calculate H+ of the following mixure. (Read 13225 times)
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Borek
Mr. pH
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Re: calculate H+ of the following mixure.
«
Reply #15 on:
September 28, 2012, 06:11:18 PM »
Quote from: shanmac on September 28, 2012, 06:08:07 PM
9.5 x 10^-9 = x2 ÷ (
6.25 x 10^-5
-x)
You are on the right track, but as AWK pointed earlier - this should be concentration, not number of moles.
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ChemBuddy
chemical calculators - stoichiometry, pH, concentration, buffer preparation,
titrations.info
shanmac
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Re: calculate H+ of the following mixure.
«
Reply #16 on:
September 28, 2012, 06:18:12 PM »
Oh so close!
Have I finally got it now...?
Ka nicotine= 10 -8.02 = 9.5 x 10^-9
9.5 x 10^-9 = x2 ÷ (8.33 x 10^-4- x)
x= 2.8 x 10^-6 = [H+]
(pH = 5.55)
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Borek
Mr. pH
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Re: calculate H+ of the following mixure.
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Reply #17 on:
September 28, 2012, 06:21:20 PM »
That's what I got as well.
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ChemBuddy
chemical calculators - stoichiometry, pH, concentration, buffer preparation,
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shanmac
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Re: calculate H+ of the following mixure.
«
Reply #18 on:
September 28, 2012, 06:26:06 PM »
Hooray!
Thanks for your assistance, I cannot tell you how helpful it has been to have someone guide me through the process.
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calculate H+ of the following mixure.