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Past Exam for CHEM 002 - General Chemistry I with Vidensek at UC-Merced (UC Merced)

Exam Information

Material Type:Mid-Term
Professor:Vidensek
Class:CHEM 002 - General Chemistry I
Subject:Chemistry
University:University of California-Merced
Term:Fall Semester 2010
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Midterm 2 Exam Form A, CHEM 002 Spring 2010. (Chapters 6, 7, 8, 9 and 10) Page 1 of 3 Name: _________________________ Date: ____________ Please be sure that any chemical equation(s) given in the question(s) below are balanced before you attempt to answer the respective question(s). 1. What is the major phosphorous containing species if a phosphoric acid solution is brought to a pH of 11.43? Note: K = 7.5 x 10 , K = 6.2 x 10 , K = 4.8 x 10 . a1 -3 a2 -8 a3 -13 a) H PO 3 4 b) H PO 2 4 - c) HPO 4 -2 d) PO 4 -3 2. Will a saturated solution of Ca(OH) 2 result if 6.09 x 10 moles of Ca(OH) is added -3 2 to 1.00 liter of pure water? Ca(OH) has a K = 1.3 x 10 2 sp -6 a) Yes b) No c) Not enough information given to answer. 3. What is the pH of a 0.15 M hydrosulfuric acid solution? Note: K a1 = 1.0 x 10 , -7 K = 1.0 x 10 . a2 -19 a) 8.24 b) 7.00 c) 5.23 d) 8.94 ...
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