Assigned problems _7 - a of the conjugate acid of ammonia...

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Chemistry 2080 Spring 2011 Problem Set #7 - due date: Friday April 1st at 2 pm Name:_______________________ Lab TA Name:__________________ Lab Day/Time:_______________ 1) Calculate the pH at 25°C of an aqueous solution that is 0.320 M in ethylamine and 0.140 M in ammonia (i.e. the solution contains both compounds). NOTE that the pK a of the conjugate acid of ethylamine is 10.65 and the pK
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Unformatted text preview: a of the conjugate acid of ammonia is 9.25 (both at 25C). 2) At 25C, the pKa of benzoic acid is 4.19 and that of propionic acid is 4.87. (a) Calculate the pH of a 0.20 M solution of benzoic acid at 25C (b) How many grams of propionic acid must be dissolved in 1.50 L of water to obtain the same pH at 25C as in part (a) above?...
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This note was uploaded on 03/28/2011 for the course CHEM 2080 taught by Professor Davis,f during the Spring '07 term at Cornell University (Engineering School).

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Assigned problems _7 - a of the conjugate acid of ammonia...

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