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Topic: Homework *delete me*  (Read 3007 times)

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Offline davidcookamericanidol08

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Homework *delete me*
« on: May 08, 2008, 11:20:54 PM »
Can anyone walk me through the following problems? I'd like a step-by-step guide, as well as the answer if possible...thanks BUNCHES!  :D

1) A solution is prepared by mixing 85.0 mL of 5.00 M HCl and 40.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+], [OH -], and the pH for this solution.

2) Calculate the concentration of an aqueous Ba(OH)2 that has pH = 10.50

3) Calculate the pH of a 5.0  10-3 M solution of H2SO4.
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Offline Borek

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Re: Homework *delete me*
« Reply #1 on: May 09, 2008, 02:51:54 AM »
Please read forum rules.
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Offline AWK

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Re: Homework *delete me*
« Reply #2 on: May 09, 2008, 03:29:05 AM »
hints
1. mix and dilute solutions. Calculation pH of strong acids is very easy. Use Borek textbook (can be found on Borek signature)

2. Strong Base. As above

3. . Treat problem as a mixture of strong and weak acids with equal concentrations. This will lead you to a  quadratic eqution.
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