At STP, which sample contains the same number of molecules as 11.2 liters of CO2 (g) at STP?

(1) 5.6 L of NO2 (g) (3) 11.2 L of N2 (g)

(2) 7.5 L of H2 (g) (4) 22.4 L of CO (g)

Question

Emilie Burgess

Chemistry

22 February, 14:57

At STP, which sample contains the same number of molecules as 11.2 liters of CO2 (g) at STP?

(1) 5.6 L of NO2 (g) (3) 11.2 L of N2 (g)

(2) 7.5 L of H2 (g) (4) 22.4 L of CO (g)

+5

Answers (1)

Know the Answer?

Jordan Jacobs · Answer 1

The answer is (3) 11.2 L of N2 (g). When the choices are all gases, the number of molecules depends on the molar number of the gas. Under the condition of STP, the molar number of a gas is depends on volume only. So the same volume of gas has the same number of molecules.

At STP, which sample contains the same number of molecules as 11.2 liters of CO2 (g) at STP?(1) 5.6 L of NO2 (g) (3) 11.2 L of N2 (g)(2) 7.5 L of H2 (g) (4) 22.4 L of CO (g)

At STP, which sample contains the same number of molecules as 11.2 liters of CO2 (g) at STP?

(1) 5.6 L of NO2 (g) (3) 11.2 L of N2 (g)

(2) 7.5 L of H2 (g) (4) 22.4 L of CO (g)