At STP, 2.0 liters of Ar(g) contains 5.4 * 10^22 atoms. How many atoms are contained in 2.0 liters of Ne(g) at STP?
- Mayya Alocci
- Oct 27
- 1 min read
Regents Chemistry Exam August 2025 Question 19
At STP, 2.0 liters of Ar(g) contains 5.4 * 10^22 atoms. How many atoms are contained in 2.0 liters of Ne(g) at STP?
(1) 2.7 * 10^11 (3) 5.4 * 10^11 (2) 2.7 * 10^22 (4) 5.4 * 10^22
Solution:
STP stands for standard temperature and pressure. If two gases have the same temperature, pressure and volume (2L), they will also have the same number of atoms. Choice 3 is the correct answer choice.
LINKS:
Comments