Answer: [tex]0.301\times 10^{23}[/tex] molecules of water
[tex]0.6023\times 10^{23}[/tex] atoms of hydrogen
[tex]0.301\times 10^{23}[/tex] atoms of oxygen
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.
1 mole of water [tex](H_2O)[/tex] contains = [tex]6.023\times 10^{23}[/tex] molecules of water
Thus 0.05 moles of water [tex](H_2O)[/tex] contain = [tex]\frac{6.023\times 10^{23}}{1}\times 0.05=0.301\times 10^{23}[/tex] molecules of water
Now , 1 molecule of water contains= 2 atoms of hydrogen
[tex]0.301\times 10^{23}[/tex] molecules of water contain = [tex]\frac{2}{1}\times 0.301\times 10^{23}=0.6023\times 10^{23}[/tex] atoms of hydrogen
Now , 1 molecule of water contains = 1 atom of oxygen
[tex]0.301\times 10^{23}[/tex] molecules of water contain = [tex]\frac{1}{1}\times 0.301\times 10^{23}=0.301\times 10^{23}[/tex] atoms of oxygen
