## Avogadro's Number

- Determine the number of atoms in 3 grams of Ca.
- Determine the number of atoms in 5 grams of Cu.
- What is the approximate weight of 5 liters of SO
_{2} at S.T.P.?
- What is the weight in grams of 16.8 liters of SO
_{3}?
- Find the number of molecules in 4 mL of oxygen gas (O
_{2})?
- What weight of N
_{2} contains the same number of molecules as 48
grams of SO_{2}?
- What weight of O
_{2} contains the same number of molecules as 11
grams of CO_{2}?
- What volume of N
_{2} contains the same number of molecules as 32
grams of SO_{2}?
- What is the percentage of carbon in sodium carbonate (Na
_{2}CO_{3})?
- What is the gram-eqivalent weight of Na
_{2}CO_{3}?

Answers

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