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Exam 3 with Solution for Analytical Chemistry | CHEM 321, Exams of Analytical Chemistry

Indiana State University (ISU)Analytical Chemistry

Material Type: Exam; Class: Analytical Chemistry; Subject: Chemistry; University: Indiana State University; Term: Fall 2008;

Typology: Exams

2009/2010

Uploaded on 02/25/2010

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Download Exam 3 with Solution for Analytical Chemistry | CHEM 321 and more Exams Analytical Chemistry in PDF only on Docsity!

Chem 321: Exam 3 Fall 2008 EXAM 3 Name: Chem 321 November 17, 2008 Student ID: Show alt pertinent work for credit. Report results with correct units and significant digits. Be sure to check any simplifying assumptions that you may make. All problems are for 298 K. Assume K,=1.00x10™. Ignore activities and complex equilibria unless specified. 1. (60 pts) Consider the titration of 5.00 mL of 0.100 M maleic acid (HOOC-GH=CH-COOH, K,,=1.8x10", K,9=5.9x107) with 0.0500 M NaOH. Calculate each answer to three decimal places. a What is the initial pH of the solution? HaA + H,0 2 HAT + H,07 Kae L107 Ka,= (HAT) (H,07) ; [HA] = (RO%] | (HAT = Cy - HO") (H24q nese only HA é WAT are sign'fieant LS