Question

The number of atoms in 67.2 L of NH3(g) at STP
(1) 9 NA
(2) 12 NA
3) 3NA
(4) 4 NA​

Answer 1

Answer:

Explanation:

B)wala

Answer 2

Answer:

one mole of any gas at STP has a volume of 22.4 L so first determine the number of moles of gas you have

67.3/22.5= 3 moles of H2 .

one mole of any substance contains Avogadro's number of atoms

=6.022x 10 power 23 atoms.

so multiply number of moles x number of atoms / mole =1.8066 x 10 power 24 atoms of H2.

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