(આણ્વિય દળ ${Ba}=137 \,{u})$
\(\because 233 \,g\,{BaSO}_{4}\) contain \(\rightarrow 32\, {~g}\) sulphur
\(\therefore 1.44\, {~g} \,{BaSO}_{4}\) contain \(\rightarrow \frac{32}{233} \times 1.44\, {~g}\) sulphur
given : \(0.471\, {~g}\) of organic compound
\(\%\) of \({S}=\frac{32 \times 1.44}{233 \times 0.471} \times 100=41.98 \,\% \approx 42\, \%\)
(પરમાણ્વીય દળ $Ag =108\,u, Br =80\,u )$.
(આણ્વિય દળ ${Ba}=137 \,{u})$