An auditorium has a volume of 6 × 103 m3. How many molecules of air are needed to fill the auditorium at one atmosphere and 0°C?
A. 1.6 × 1029
B. 1.6 × 1027
C. 1.6 × 1025
D. 1.6 × 1023
E. 1.6 × 1020
Answer: A
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