Chemistry - Concentration Terms Question with Solution | TestHub

Relation between Molality ( $m$ ), Molarity (M) and density (d) is $m=\frac{1000M}{1000\times d-M\times M_{\text{solute }}}$ Msolute denotes molar mass of solute. $m=\frac{1000\times 1}{(1000\times 1.25)-(1\times 85)}=\frac{1000}{1250-85}=\frac{1000}{1165}$ $\mathrm{m}=0.858\mathrm{m}$