Practice Atomic Mass (3.2.2) - Atoms and Molecules

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9 questions

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Exercise
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6 sample questions

Question 1.
What is the unit used to express atomic mass?
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Think about the unit that defines mass in the atomic world.
Question 2.
Define relative atomic mass in your own words.
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Consider what standard we use for comparison.
3Question 3.
What is the definition of atomic mass?
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Think about what measurement reflects the size of an atom.
4Question 4.
The relative atomic mass of an atom is compared to which element?
- Hydrogen
- Oxygen
- Carbon-12
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Recall which atom serves as the baseline for atomic mass.
Question 5.
If the average atomic mass of chlorine is 35.5 u, how do we account for its isotopes in this calculation?
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Think about how averages are formed from different samples.
Question 6.
Consider a situation where you need to balance a chemical equation. If you start with 46 g of aluminum reacting with oxygen, how do you find the relative quantities of products formed?
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Refer back to how atomic masses align with mole calculations.

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