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lab 1 prelab and postlab answers
Course: CHEM Chem 6bl, Summer 2010School: UCSD
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6BL CHEM EXPERIMENT 1 ANSWER KEY PRELAB & POSTLAB QUESTIONS PRELABORATORY QUESTIONS 1. The steps are: OxH Ox + H+ Al3+ + 3 Ox Al(Ox)3 (s) 2. 0.01000 M (four sig. figs.) 3. Al3+ 4. 0.0017 excess moles Ox added 5. See explanations in lecture notes 6. Average = 89.5 Standard deviation 2.7 = 2 = 5.4 7. Q > QC, the outlier can be rejected and a 4th trial should be done 8. [Ag+] = 1.208 M 9. See MSDS...
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6BL CHEM EXPERIMENT 1 ANSWER KEY PRELAB & POSTLAB QUESTIONS
PRELABORATORY QUESTIONS
1. The steps are: OxH Ox + H+ Al3+ + 3 Ox Al(Ox)3 (s)
2. 0.01000 M (four sig. figs.) 3. Al3+ 4. 0.0017 excess moles Ox added 5. See explanations in lecture notes 6. Average = 89.5 Standard deviation 2.7 = 2 = 5.4
7. Q > QC, the outlier can be rejected and a 4th trial should be done 8. [Ag+] = 1.208 M 9. See MSDS Information
POSTLABORATORY QUESTIONS
1. 36.7 g O 2. 84.70 % 3. YBa2Cu3O6.5 4. 57.33 % KClO3 (and 42.67 % NaCl) 5. C6H12O6
Course Instructor: Dr. S. Berniolles
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