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SCI302B: Chemistry | Unit 9 | Lesson 4: Semester Test
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Graded Assignment
Semester Test, Part 2
Answer the questions below. When you have finished, submit this assignment to your teacher by the due date for
full credit.
(5 points)
What is Charles’s law?
1.
Score
•
State the definition of the law in words.
•
What are the assumptions of Charles’s law?
•
Write mathematical equations that represent the law.
•
What can be calculated using Charles’s law?
•
Using a gas-filled balloon as an example, describe what happens to the gas molecules that behave
according to Charles’s law.
Answer:
(5 points)
2.
Draw a structural formula for 3-hexene (C6H12), which has a double bond between the
number 3 and 4 carbons in the chain. What class of compound is it, and what feature
distinguishes it as that class?
Score
Answer:
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Graded Assignment
SCI302B: Chemistry | Unit 9 | Lesson 4: Semester Test
(5 points)
3.
A calorimeter contains 500 g of water at 25°C. You place a hand warmer containing 200 g
of liquid sodium acetate inside the calorimeter. When the sodium acetate finishes crystallizing,
the temperature of the water inside the calorimeter is 39.4°C. The specific heat of water is 4.18
J/g-°C. What is the enthalpy of fusion (Hf) of the sodium acetate? (Show your work.) Where
necessary, use q = mHf.
Score
Answer:
Your Score
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