Answer:
There are [tex]3.011\times 10^{23} molecules [/tex] in 0.500 moles of hydrogen gas.
Explanation:
Moles of hydrogen gas = 0.500 moles
1 mol = [tex]N_A=6.022\times 10^{23} [/tex] atoms/ molecules, ions
Number of molecules of hydrogen in 0.005 moles :
[tex]0.500\times 6.022\times 10^{23}=3.011\times 10^{23} atoms[/tex]
There are [tex]3.011\times 10^{23} molecules [/tex] in 0.500 moles of hydrogen gas.
