Ideal Gas Law

AP Chemistry· difficulty 1/5

Two identical 22.4 L containers at STP hold N2 in one and He in the other.

According to Avogadro's law, equal volumes of gases at STP contain:

A
$Equal masses$
B
$Equal densities$
C
$Equal energies$
D
$Equal numbers of moles (and molecules)$
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Explanation

Avogadro: at the same T and P, equal volumes contain equal numbers of particles. At STP, 22.4 L = 1 mol.

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