Chem 104 experiment 2 Study guides, Class notes & Summaries
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CHEM 104 Experiment 5: Buffers - Portage Learning
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CHEM 104 Experiment 5: Buffers - Portage Learning Purpose: The purpose of this lab is to determine how buffers affect the pH of a solution in order to observe how a buffer is resistant to pH changes. Additionally, we determined how enzymes activity is affected by pH. Procedure: Part 1: Determine pH of sodium acetate in water & buffer 1. 2 pH electrodes are place in 2 separate beakers, one filled with tap water & one is filled with a pH 7 buffer (both have an approximate pH of 7) 2. A scoop of s...
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CHEM 104 Experiment 8: Urinalysis - Portage Learning
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CHEM 104 Experiment 8: Urinalysis - Portage Learning Purpose: The purpose of this lab is to carry out several experiments to evaluate the chemical makeup of a simulated urine sample. Procedure: Part 1: Chloride (Cl- ) 1. Prepare a mixture of AgNO3(silver nitrate) & Cl- solutions 2. These are both colorless solutions 3. Combine the solutions & note how they turn cloudy & form a white precipitate Part 2: Phosphate (PO3 -3) 1. Prepare a mixture of PO4 & (NH4)2MoO3 (Ammonium dimolybdate) solutions ...
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CHEM 104 Experiment 4: Molarity of Vitamin C - Portage Learning
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CHEM 104 Experiment 4: Molarity of Vitamin C - Portage Learning Purpose: The purpose of this lab is to determine a better understand of solutions and concentrations relating to vitamins, specifically vitamin C or ascorbic acid. In order to do so, we measured the vitamin C in a few different fruits to determine the concertation of vitamin c in each. Procedure: Part 1: Determining the vitamin c concentration of iodine 1. Iodine was placed in a buret. 2. A solution was made from the commercial vit...
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CHEM 104 Experiment 7 Organic Synthesis - Portage Learning
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CHEM 104 Experiment 7 Organic Synthesis - Portage Learning Purpose: The purpose of this lab was to determine the process of synthesizing various carboncontaining organic products including aspirin, urea, & salicylic acid. In doing so, we were also able to calculate the percent yield in each of these experiments. Procedure: Part 1: Synthesis of aspirin 1. Placed 2.0 g of salicylic acid & placed it in a flask 2. 5.0 mL of acetic anhydride was then added to the flask & mixed 3. 5 drops of sulfuric...
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BEST REVIEW CHEM 104 PORTAGE LEARNING EXPERIMENT 2 EQUILIBRIUM REACTIONS 2024/2025 STUDY GUIDE
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QUESTIONS AND ANSWERS
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First Semester Study Guide AP Chem Buck Exam 196 Questions with Verified Answers,100%CORRECT
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First Semester Study Guide AP Chem Buck Exam 196 Questions with Verified Answers 
 
Salts containing which of the following ions are generally insoluble in cold water? 
a. nitrate 
b. acetate 
c. phosphate 
d. potassium 
e. ammonium - CORRECT ANSWER C. Phosphate 
 
Which of the following changes alone would cause a decrease in the value of Keq for the reaction represented above? 
a. Decreasing the volume of the 
reaction vessel 
b. Adding a catalyst 
c. Increasing the volume of the 
reacti...
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CHEM 102 Winter 12 Exam 2 (A) Questions and Answers,100% CORRECT
- Exam (elaborations) • 9 pages • 2023
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CHEM 102 Winter 12 Exam 2 (A) Questions and Answers 
 
Potentially useful information:	First order half-life: t1/2 = ln2 / k 
[A]t = - kt + [A]o ln[A]t = - kt + ln[A]o 1/[A]t = kt +1/[A]o 
 
1.	Please choose the letter “a” as your answer for this question. 
 
2.	Which choice is an example of an amorphous solid? 
a.	NaCl 
b.	graphite 
c.	iron 
d.	diamond 
e.	glass 
 
3.	Which choice is an example of an ionic solid? 
a.	NaCl 
b.	diamond 
c.	iron 
d.	quartz 
e.	glass 
 
4.	In body-centered cubi...
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CHEM 104 PORTAGE LEARNING EXPERIMENT 2 EQUILIBRIUM REACTIONS 2024/2025 STUDY GUIDE
- Exam (elaborations) • 4 pages • 2024
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QUESTIONS AND ANSWERS
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CHEM 102 Winter 12 Exam 2 (A) Questions and Answers,100% CORRECT
- Exam (elaborations) • 9 pages • 2023
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CHEM 102 Winter 12 Exam 2 (A) Questions and Answers 
 
Potentially useful information:	First order half-life: t1/2 = ln2 / k 
[A]t = - kt + [A]o ln[A]t = - kt + ln[A]o 1/[A]t = kt +1/[A]o 
 
1.	Please choose the letter “a” as your answer for this question. 
 
2.	Which choice is an example of an amorphous solid? 
a.	NaCl 
b.	graphite 
c.	iron 
d.	diamond 
e.	glass 
 
3.	Which choice is an example of an ionic solid? 
a.	NaCl 
b.	diamond 
c.	iron 
d.	quartz 
e.	glass 
 
4.	In body-centered cubi...
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CHEM 102 Winter 18 Final Exam (A) Questions and Answers,100% CORRECT
- Exam (elaborations) • 19 pages • 2023
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CHEM 102 Winter 18 Final Exam (A) Questions and Answers 
 
Potentially useful data: 
 
x 	1 atm = 760 torr = 760 mm Hg 
2 a 
[A]t = – kt + [A]o	ΔG° = ΔH° – T ΔS° 
ln[A]t = – kt + ln[A]o	ΔG = ΔG° + RT ln Q 
1/[A]t = kt +1/[A]o	ΔG° = – RT ln K 
First order half-life: t1/2 = ln2 / k	ΔG° = – nFE° 
 
pH pKa 
 
	log base 
acid 
 
E E R T ln Q 
n F 
 
R = 8.314 J mol-1 K-1	F = 96500 C/mol e- 
 
 
1.	Please choose the letter “A” as your a...
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