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The volumes of four samples of gaseous compounds at 298 K and 101.3 kPa are shown in the table below

  • Mayya Alocci
  • Jul 23, 2023
  • 1 min read

August 2019 NY Regents Chemistry Exam


40 The volumes of four samples of gaseous compounds at 298 K and 101.3 kPa are shown in the table below.

Which two samples contain the same number of molecules?


(1) 1 and 2

(2) 1 and 3

(3) 2 and 3

(4) 2 and 4


Solution: Gases with the same pressure, temperature and volume have the same number of molecules.

Answer:2


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