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CHEM 121 LAB REPORT 2026 HIGH-YIELD CHEMICAL EXPERIMENT CONCEPTS STUDY COMPANION

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CHEM 121 LAB REPORT 2026 HIGH-YIELD CHEMICAL EXPERIMENT CONCEPTS STUDY COMPANION

Institution
Chem
Course
Chem

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CHEM 121 LAB REPORT 2026 HIGH-YIELD
CHEMICAL EXPERIMENT CONCEPTS
STUDY COMPANION

◉Final atomic mass in Method 2. Answer: The sum of all weighted
contributions.


◉Method 3 (Entire Sample). Answer: A method that uses the total
mass and total number of particles in the entire sample to calculate
atomic mass.


◉Purpose of Method 3. Answer: To obtain the true or reference
atomic mass for comparison.


◉Atomic mass formula (Method 3). Answer: Atomic mass = total
mass ÷ total number of particles.


◉Why Method 3 is most accurate. Answer: Because it uses the entire
sample and eliminates sampling variation.


◉Accuracy. Answer: How close a measurement is to the true or
accepted value.
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