Enthalpy of Solution

Using the value of CP$,$cal $(-70\mathrm{.}025$kg$)$ calculate the enthalpy of solution in J g$^-1$ for your unknown salt. Identify the salt by comparison to your tabulated values $($attached picture$).$Comment on the discrepancies between the experimental and literature value of deltaHsol for your salt.

Mass of Clean Dry Calorimeter: $6\mathrm{.}74$g

Mass of Calorimeter $+$ water: $105\mathrm{.}37$g

Mass of Calorimeter $+$ water $+$ salt: $108\mathrm{.}25$g

Initial Calorimeter Temperature $($Ti$)=20\mathrm{.}95$ degrees celsius

Final Calorimeter Temperature Tf$)=24\mathrm{.}05$ degrees celsius

The cation is lithium and the salt can be:

LiF, U$/$kj mol $=-1032\mathrm{.}1$

LiCl, U$/$kj mol $=-846\mathrm{.}4$

LiBr, U$/$kj mol $=-807\mathrm{.}5$

LiI $($Lithium Iodide$),$ U$/$kj mol $=-753\mathrm{.}1$