Chem 104 experiment Study guides, Class notes & Summaries
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CHEM 104 Experiment 5 : Buffers Summer 2023 portage learning
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Experiment #: 5 
Title: Buffers 
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 sodium aceta...
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CHEM 104 Experiment 4: Molarity of vitamin C
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Experiment #: 4 
Title: Molarity of Vitamin C 
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 vitamin C by w...
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CHEM 104 Experiment 7, Organic synthesis Summer 2023 portage learning
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Experiment #: 7 
Title: Organic Synthesis 
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 acid was a...
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CHEM 104 Experiment 4: Molarity of Vitamin C - Portage Learning
- Exam (elaborations) • 3 pages • 2023
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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 2 Equilibrium Reactions Summer 2023 portage learning
- Other • 4 pages • 2023
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Experiment #: 2 
Title: Equilibrium Reactions 
Purpose: The purpose of this experiment is to evaluate and study the equilibrium by measuring 
the equilibrium constant. 
Procedure: 
We performed 2 different experiments: 
o Determination of the equilibrium constant Kc 
o Study of LeChatelier’s principle 
Experiment #1: acetic acid vs. propyl alcohol 
1. Summary: After gathering supplies, we created a solution of acetic acid and propyl 
alcohol in a small flask. At various time intervals, we then...
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CHEM 104 Experiment 6: Electrochemistry Summer 2023 Portage learning
- Other • 3 pages • 2023
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Experiment #: 6 
Title: Electrochemistry 
Purpose: The purpose of this lab was to study how redox reactions occur & to determine how 
conductivity can occur between metals & how we can predict if it will react or not. 
Procedure: 
Consider: 
Cu2+ + 2e- -> Cu(s) = reduction 
Fe(s) -> Fe2+ + 2e- = oxidation 
Part 1: 
1. Utilizing a lightbulb device, we tested the conductive of the following items: 
a. Metal cylinder good conductor (bright light) 
b. Water poor conductor (no light) 
c...
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CHEM 104 Experiment 8 : Urinalysis summer 2023 portage learning (Chemistry notebook)
- Other • 3 pages • 2023
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Experiment #: 8 
Title: Urinalysis 
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 
2. Add ...
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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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CHEM 104 PORTAGE LEARNING EXPERIMENT 2 EQUILIBRIUM REACTIONS 
2024/2025 STUDY GUIDE
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CHEM 104 MODULE 1- MODULE 6 EXAM 2022/2023 100%CORRECT QUESTIONS AND ANSWERS - PORTAGE LEARNING.
- Exam (elaborations) • 32 pages • 2023
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CHEM 104 MODULE 1- MODULE 6 EXAM 2022/2023 100%CORRECT QUESTIONS AND ANSWERS - PORTAGE LEARNING. 
Portage Learning CHEM 104 Module 1 Exam: 
Question 1 
In the reaction of gaseous N2O5 to yield NO2 gas and O2 gas as shown below, the following data table 
is obtained: 
→ 4 NO2 (g) + O2 (g) 
1. Using the [O2 
] data from the table, show the calculation of the instantaneous rate early in the 
reaction (0 secs to 300 sec). 
2. Using the [O2 
] data from the table, show the calculation of the instan...
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CHEM 104 MODULE 1- MODULE 6 EXAM 2022/2023 100%CORRECT QUESTIONS AND ANSWERS - PORTAGE LEARNING.
- Exam (elaborations) • 32 pages • 2023
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CHEM 104 MODULE 1- MODULE 6 EXAM 2022/2023 100%CORRECT QUESTIONS AND ANSWERS - PORTAGE LEARNING. 
Portage Learning CHEM 104 Module 1 Exam: 
Question 1 
In the reaction of gaseous N2O5 to yield NO2 gas and O2 gas as shown below, the following data table 
is obtained: 
→ 4 NO2 (g) + O2 (g) 
1. Using the [O2 
] data from the table, show the calculation of the instantaneous rate early in the 
reaction (0 secs to 300 sec). 
2. Using the [O2 
] data from the table, show the calculation of the instan...
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