(નજીકના પૂર્ણાંક સુધી રાઉન્ડ) [આપેલ : આણ્વિય દળ : $C =12.0 \,u , H : 1.0\, u,O : 16.0 \,u , Br =80.0 \,u ]$
\(=\) moles of m-bromobenzoic acid
So, weight of m-bromobenzoic acid
\(=\frac{6.1}{122} \times 201\, gm\)
\(=10.05\, gm\)
\(\%\) yield \(=\frac{\text { Actual weight }}{\text { Theoretical weight }} \times 100\)
\(=\frac{7.8}{10.05} \times 100\)
\(=77.61 \,\%\)