Chemistry

16 March, 20:19

Which two samples of gas at STP contain the same total number of molecules?

(1) 1 L of CO (g) and 0.5 L of N2 (g)

(2) 2 L of CO (g) and 0.5 L of NH3 (g)

(3) 1 L of H2 (g) and 2 L of Cl2 (g)

(4) 2 L of H2 (g) and 2 L of Cl2 (g)

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