Chemistry
WAEC 2010
Which of the following gases contains the highest number of atoms at s.t.p?
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A.
6 moles of neon
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B.
3 moles of oxygen
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C.
2 moles of chlorine
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D.
1 mole of ethane
Correct Answer: Option D
Explanation
Count Atomicity for Each Gas
- Neon (Ne): A noble gas, which is monoatomic (1 atom per molecule).
- Oxygen (O\(_2\)): A diatomic gas (2 atoms per molecule).
- Chlorine (Cl\(_2\)): A diatomic gas (2 atoms per molecule).
- Ethane (C\(_2\)H\(_6\)): A polyatomic molecule containing 2 carbon atoms and 6 hydrogen atoms (8 atoms per molecule).
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