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need help with these chemistry problems

Discussion in 'Homework Help' started by .Andrew., May 6, 2012.

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  1. .Andrew.

    .Andrew. Forum Addict
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    need help with these chemistry problems
    back again and I cant afford to get these wrong. I would appreciate some help.


    When 25.00 mL of HNO3 are titrated with Sr(OH)2, 58.4mL of a .218M solution are required.
    a. What is the pH of HNO3 before titration?
    b. What is the pH at the equivalence point?

    Ascorbic acid, HC6H7O3, also known at vitamin c is a weak acid. A solution of ascorbic acid is prepared by dissolving 2.00 grams in enough water to make 100.0 ml of solution. The resulting solution has a pH of 2.54. what is the Ka for the ascorbic acid.?
     
    .Andrew., May 6, 2012
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  2. Sypherz

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    need help with these chemistry problems
    Damn, shame I missed this. If you still need any chem help PM me and i'll do my best :)
     
    Sypherz, Jun 3, 2012
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