Exam_2A_ans - Rockley, Fall 2010, Chem.1314 Exam #2. Page 1...

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Rockley, Fall 2010, Chem.1314 Exam #2. Page 1 of 7. 1. A O B O C O D O E O Name: ______________________ 2. A O B O C O D O E O Name in BLOCK CAPITALS 3. A O B O C O D O E O _____________________ 4. A O B O C O D O E O Lab Day: ____________________ 5. A O B O C O D O E O TA Name _____________________ 6. A O B O C O D O E O 7. A O B O C O D O E O 8. A O B O C O D O E O 9. A O B O C O D O E O 10. A O B O C O D O E O 11. A O B O C O D O E O 12. A O B O C O D O E O 13. A O B O C O D O E O 14. A O B O C O D O E O 15. A O B O C O D O E O 16. A O B O C O D O E O 17. A O B O C O D O E O 18. A O B O C O D O E O 19. A O B O C O D O E O
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Rockley, Fall 2010, Chem.1314 Exam #2. Page 2 of 7. 20. A O B O C O D O E O
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Rockley, Fall 2010, Chem.1314 Exam #2. Page 3 of 7. 1. What is the mass in kilograms of 4.6 x 10 21 formula units of magnesium phosphate A 2.01 x 10 -3 B 1.03 C 262.85 D 2.01 E 0.422 2. Determine the number of oxygen atoms in 5.46 g. of calcium phosphite dihydrate. A 7.61 x 10 22 B 1.58 x 10 -2 C 6.28 x 10 22 D 9.49 x 10 22 E 8.37 x 10 22 3. Give the empirical formula of the following compound if a sample contains 40.7 percent C, 5.12 percent H, and 54.2 percent O by mass. A
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Exam_2A_ans - Rockley, Fall 2010, Chem.1314 Exam #2. Page 1...

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