MCAT General Chemistry Question 107: Answer and Explanation
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Question: 107
2. What is the density of neon gas in 
at STP?
- A. 452.3
- B. 226.0
- C. 1.802
- D. 0.9018
Correct Answer: D
Explanation:
Density equals mass divided by volume. The mass of 1 mole of neon gas equals 20.2 grams. At STP, 1 mole of neon occupies 22.4 L. Dividing the mass, 20.2 grams, by the volume, 22.4 L, gives an approximate density of 