115 Exam2 Sp 2006

115 Exam2 Sp 2006 - Name _CRIB_ Section _ TA _ Chemistry...

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Name __CRIB___________________ Chemistry 115 Section ____________ E X A M I I T o t a l P o i n t s = 1 2 0 TA ___________________________ Wednesday, 8:30 PM M a r c h 1 , 2 0 0 6 Directions: 1. Each student is responsible for following directions. Read this page carefully. 2. Write your name and other requested information on this page and on the separate answer sheet. 3. CODE your name on the answer sheet using an ordinary (#2) pencil. 4. CODE your correct 10-digit identification number (PUID) on the answer sheet. THIS IS VERY IMPORTANT! 5. CODE your section number on the answer sheet. Please use all four digits, 0101, 0102, 0201, etc. This is also very important! 6. Put all calculations on the examination pages. DO NOT PUT ANY EXTRA MARKS ON THE COMPUTER ANSWER SHEET! 7. This exam consists of 20 multiple-choice questions worth 6 points each. Choose the one best or correct answer for each question and write it both on your exam paper and on the computer answer sheet. The computer answer sheet is the only one that will be graded! 8. This exam consists of 6 pages plus a Periodic Table. Please check to be sure that you have them all! Useful Information: PV = nRT R = 8.21 x 10 -2 L• atm/(mol• K) 760 torr = 1 atm K = o C + 273.15
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Chem 115 – Exam 2 – 3/01/06 2 C____ 1. Use the oxidation number method to balance the following equation by placing coefficients in the blanks. ___ PbO(s) + ___ NH 3 (aq) Æ ___ N 2 (g) + ___ H 2 O( ) + ___ Pb(s) When this is balanced correctly using lowest possible integers, the correct coefficient for Pb(s) is: (a) 1 (b) 2 (c) 3 (d) 4 (e) 5 C____ 2. You are given solutions of HCl and NaOH and must determine their concentrations. You use
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This test prep was uploaded on 04/02/2008 for the course CHEM 115 taught by Professor L during the Spring '02 term at Purdue University.

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115 Exam2 Sp 2006 - Name _CRIB_ Section _ TA _ Chemistry...

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