a. Babituric acid, HC4H3N2O3, is used to prepare barbiturates, a class of drugs used as sedatives. A 325 mL aqueous solution of barbituric acid has a pH of 2.34 and contains 9 g of the acid. What is the Ka for barbituric acid?
b.Penicillin (MM = 356 g/mol), an antibiotic often used to treat bacterial infections, is a weak acid. Its Ka is 1.7 x 10^-3. Calculate [H+] in solutions prepared by adding enough water to following to make 725 mL.
Please show and explain work.
2007-03-29
16:37:06
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1 answers
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asked by
nirmal
1
in
Chemistry