Chem 120 - Study guides, Class notes & Summaries

CHEM 120 Week 7 Lab practicum (100% Correct) Chamberlain University. If a patient has fever of 103 ◦F, convert it in degree Celsius 103F-32 / 1.8 = 39.44 C 2. You are given 500 mg NaCl. If it is dissolved in 7.5 mL water what would be the density in g/mL? 500 NaCL / 7.5 mL = 66.7 g/ml 3. Provide name of the following organic compound

CHEM 120 WEEK 8 FINAL EXAM 2 LATEST VERSIONS 2024 ACTUAL EXAM 171 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES

CHEM 120 Week 5 Exam 2 (Units 3 and 4)

1. A solution is prepared by dissolving 50 g of KCl (74.6 g/mol) to a volume of 1 L. What is the molarity of this solution? 2. You prepare a solution by dissolving 20 g of NaCl to a volume of 350 mL in water. What is the mass/volume % concentration of this solution? 3. When the following reaction goes in the forward direction, what is the base? 4. You are preparing a buffered solution. So far, your solution contains H2PO4- ions, what would you add to this solution to prepare your buffer sy...

CHEM 120 Exam 3 1.To make octane (gasoline), 8 grams of carbon need to react with 3 grams of hydrogen. How many grams of hydrogen would be needed to react with 24 grams of carbon?

Hypothesis correct answer: a testable educated guess Experiment correct answer: how we test hypotheses Variable correct answer: Idea to be tested (only one) Control correct answer: Something the variable is tested against Experimental protocol correct answer: How do you do the test? Results correct answer: Data generated comparing variable to controls. Includes statistics to show results are meaningful Conclusion correct answer: Interpretation of results independent v...

CHEM 120 Week 8 Exam 3 (Units 5, 6, and 7)

Chem 120 Chamberlain final | Questions and Correct Answers | Latest Update 2024/2025 | 100% Pass Saturated - Answer -alkane Unsaturated - Answer -alkenes and alkynes CH3CH2CH2CH2CH3 - Answer -Pentane C2H6 - Answer -Ethane what are your terminal carbons - Answer -CH3 CH3-CH2-CH3 |

Station 1. You have run an experiment studying the effects of the molecular weight of a compound on the rate of diffusion in agar. Compound X has a molecular weight of 25.3 g/mol and compound Y has a molecular mass of 156.2 g/mol. On two separate agar plates, 0.1 g of each substance were transferred and allowed to diffuse for 2 hours. The results below were obtained. Use this information about this situation to answer the following three questions. 1. Question: (CO 1) What was the independent v...

CHEM 120 Week 8 Assignment Final Group Project: The Chemistry of Recreational Substances Abstract Fentanyl (C22H28N2O ) is a synthetic lipophilic phenylpiperidine opioid. It is a Monocarboxylic acid amide. It has analgesic and anesthetic properties. Fentanyl much like morphine, is typically used to treat chronic pain following surgical procedures under the supervision of licensed medical professionals, such as nurses. However, fentanyl is estimated to be around one hundred times more ...