b
\({C_1}\,\, = \,\,\frac{{8.6}}{{60\,\, \times \,\,1}}\,\, = \,\,\frac{{8.6}}{{60}}\) મોલ/લિટર,

\({{\text{C}}_{\text{2}}}\,\, = \,\,\frac{{0.5}}{{(mol.wt.)\,\, \times \,\,0.1}}\) મોલ/લિટર

આઈસોટોનીક દ્રાવણ માટે \(,\,\,{{\text{C}}_{\text{1}}}\, = \,\,{C_2}\)

\(\frac{{8.6}}{{60}}\,\, = \,\,\frac{{0.5}}{{(mol.wt.)\,\, \times \,\,0.1}}\)

\( \Rightarrow \,\,\,\,mol.wt.\,\, = \,\,\frac{{60\,\, \times \,\,5}}{{8.6}}\,\, = \,\,34.88\)