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Caffeine

CHEM 1A midterm 2

Subject: 
Chemistry
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Tags: 
Chemistry
Equilibrium chemistry
Bases
Acid-base chemistry
Acids
Inorganic solvents
Tannic acid
Acid dissociation constant
Caffeine
Ammonia
PH
Buffer solution

Chemistry 1A, Fall 2011 Midterm Exam #2 October 18, 2011 (90 min, closed book) Name:__________________________________ SID:___________________________________ GSI Name:________________ ? The test consists of 4 short answer questions and 23 multiple choice questions. ? Put your written answers in the boxes provided. Answers outside the boxes will NOT be considered in grading. ? Write your name on every page of the exam. Question Page Points Score Multiple Choice 2-8 76 Cabbage juice 2 6 Kitty Litter 3 6 Nicotine 5 4 Caffeine 7 8 Total 100

CHEM 1A midterm 1 key

Subject: 
Chemistry
Rating: 
0
No votes yet
Tags: 
Chemistry
Equilibrium chemistry
Bases
Acids
Smoking
Acid-base chemistry
Acid dissociation constant
Nicotine
Tannic acid
Caffeine
PH
Buffer solution
health

Chemistry 1A, Fall 2011 Midterm Exam #2 October 18, 2011 (90 min, closed book) Name:__________________________________ SID:___________________________________ GSI Name:________________ ? The test consists of 4 short answer questions and 23 multiple choice questions. ? Put your written answers in the boxes provided. Answers outside the boxes will NOT be considered in grading. ? Write your name on every page of the exam. Question Page Points Score Multiple Choice 2-8 76 Cabbage juice 2 6 Kitty Litter 3 6 Nicotine 6 4 Caffeine 8 8 Total 100 Useful Equations and Constants: pH = - log[H+] pX = - log X X = 10-pX Kw = 1?10-14 at 25?C PV = nRT ][ ][ log HA A pKpH a ?

dapnia lab report

Subject: 
Biology
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Tags: 
Branchiopoda
Phyla
Daphnia
Fishkeeping
Caffeine
Medicine
Alcoholism
experiment
Pharmacology
health
ap biology lab report format

Faith Eno Daphnia lab report Abstract The importance of this experiment is to better understand how the water flea reacts to the solutions alcohol and caffeine. The experiment begins with taking the dapnia and securing it onto a slide. A team of two people where one will count the heart beats and one keep track of time will measure the BPM of the Daphnia throughout. The control is the first to be measured in beats per minute with brief breaks to change out the water. Then the variables alcohol, caffeine, and the experimental solution are measured with brief breaks to change out the concentrations of the solutions (alcohol 1%, 3%, and %5 ;Caffeine 1% and 2%) rest the water flea in water.
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