Which of the following represents 1 mol of phosphine gas,PH₃?

Question

Quizplus · Accepted Answer

A) 6.02 x 10^23 represents Avogadro's number, which is the number of particles (atoms, molecules, etc.) in one mole of a substance.
B) 34.00 g represents the molar mass of phosphine gas (PH3) since 1 mole of any substance has a mass equal to its molar mass in grams.
C) 22.4 L represents the molar volume of a gas at STP (standard temperature and pressure). 1 mole of any gas at STP occupies a volume of 22.4 L. 
Therefore, all of the above choices represent 1 mole of phosphine gas.

Which of the Following Represents 1 Mol of Phosphine Gas,PH₃