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Topic: real world chemistry question  (Read 3927 times)

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Offline Frontside

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real world chemistry question
« on: October 09, 2007, 09:33:38 PM »
The question is:

How much 19% ammonium hydroxide would you need to add to 50 gallons of water to get the pH to increase from 6.8 to 9.0.

I have been working on this for a couple days for a friend and have been unable to figure it out.

any help is appreciated
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Offline AWK

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Re: real world chemistry question
« Reply #1 on: October 10, 2007, 12:46:33 AM »
Start from calculations of OH- conceetration at both pH, the concnetratu\ion of ammonia at higher pH
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