%element:
[tex]\tt \%=\dfrac{Ar\times subscript}{Mr} [/tex]
Ag₂O:
[tex]\tt \%Ag=\dfrac{108\times 2}{232}=93.1\%\\\\\%O=\dfrac{16}{232}=6.9\% [/tex]
KClO₃:
[tex]\tt \%K=\dfrac{39}{122.5}=31.8\%\\\\\%Cl=\dfrac{35.5}{122.5}=29\%\\\\\%O=\dfrac{16\times 3}{122.5}=39.2\%\\\\or\:100-(31.8+29)=39.2\% [/tex]
SO₃:
[tex]\tt \%S=\dfrac{32}{80}=40\%\\\\\%O=\dfrac{16\times 3}{80}=60\% [/tex]
CCl₄:
[tex]\tt \%C=\dfrac{12}{154}=7.8\%\\\\\%Cl=\dfrac{35.5\times 4}{154}=92.2\%\\\\or\:100-7.8=92.2\% [/tex]
