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April 18, 2015

April 18, 2015

Posted by **Gina** on Friday, February 18, 2011 at 12:09am.

A) The two containers hold an equal mass of gas.

B) The two containers hold an equal number of gas particles.

C) The molecules in each container have the same average kinetic energy.

D) The two containers hold an equal number of atoms.

E) The two containers hold an equal number of moles of gas.

- Chemistry -
**DrBob222**, Friday, February 18, 2011 at 1:01amThink about this.

PV = nRT for each gas, therefore, if we solve for n = PV/RT then

(PV/RT)<_{Ar}= (PV/RT)_{H2}. Then, since

n = grams/molar mass, we can write

(PV/RT)_{Ar}= (PV/RT)_{H2}= (g/MM)_{Ar}= (g/MM)_{H2}. Since P, V, R, and T are the same, we can dispense with the PV/RT and just write

(g/MM)_{Ar}= (g/MM)_{H2}.

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