Answer:
[tex]5.4198[/tex] × [tex]10^{24}[/tex] atoms of hydrogen
Explanation:
Firstly, we need to know how many atoms of [tex]NH_{3}[/tex] are there in 3 moles of [tex]NH_{3}[/tex].
We know that there is [tex]6.022[/tex] × [tex]10^{23}[/tex] atoms in a mole of any substance.
[tex]6.022[/tex] × [tex]10^{23}[/tex] is Avogadro's Constant
[tex]6.022[/tex] × [tex]10^{23}[/tex] × 3 = [tex]1.8066[/tex] × [tex]10^{24}[/tex]
Therefore in 3 moles of ammonia, there are [tex]1.8066[/tex] × [tex]10^{24}[/tex] atoms.
Next, you should determine how many molecules of an element is present in ammonia.
There is 1 Nitrogen molecule and 3 Hydrogen molecules for every mole of ammonia.
Finally, since we know 3 moles of ammonia contains [tex]1.8066[/tex] × [tex]10^{24}[/tex] atoms, we just have to multiply accordingly to get the individual amount of atoms of an element a compound has.
For Nitrogen :
1 × [tex]1.8066[/tex] × [tex]10^{24}[/tex] = [tex]1.8066[/tex] × [tex]10^{24}[/tex] atoms of nitrogen
For Hydrogen :
3 × [tex]1.8066[/tex] × [tex]10^{24}[/tex] = [tex]5.4198[/tex] × [tex]10^{24}[/tex] atoms of hydrogen
Therefore, there is [tex]5.4198[/tex] × [tex]10^{24}[/tex] hydrogen atoms in 3 moles of ammonia.
Hope this answer helped!
