A_B Practice Test3

A_B Practice Test3 - CHEM 1202 Sect 1 EXAM 2 Acid/Base...

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Summer2002 EXAM 2 Acid/Base Equilibria Dr. Kolniak IMPORTANT: On the scantron sheet fill in your name ( LAST name first) and ID number in the box and bubble in the corresponding letter and number. Ask a question , if you are not sure about what to do or if you are confused about the content of the problem. Select the very best answer (7 pts each). Constants: Kw = 1 x 10 -14 1. What is the pH of a 4.85 x 10 -5 M HNO 3 solution? a. pH = 4.85 x 10 -5 b. pH = 1.00 c. pH = 1.46 d. pH = 4.31 e. pH = 9.69 2. What is the base concentration, OH - , in tomatoes, if they have a pH of 4.3? a. 0.63 M b. 1.63 x 10 -5 M c. 5.01 x 10 -5 M d. 6.13 x 10 -5 M e. 2.00 x 10 -10 M 3. Which one of the following statements is the correct definition of a Arrhenius Base ? a. increases H + concentration b. donates a H + c. increases OH - concentration d. combines with or accepts H + e. an electron donor 4. What is the pH of a 7.23 x 10 -2 M NaOH solution? a.
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This note was uploaded on 10/20/2011 for the course CHEM CHEM 1202 taught by Professor Situma during the Spring '09 term at LSU.

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A_B Practice Test3 - CHEM 1202 Sect 1 EXAM 2 Acid/Base...

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