O See Hint

Phthalates used as plasticizers in rubber and plastic products are believed to act as hormone mimics in humans. The value of $H_{\text{c}\text{o}\text{m}\text{b}}$ for dimethylphthalate $(C_{10}{H}_{10}{O}_4)$ is $-4685k\frac{J}{m}ol.$ Assume $0\mathrm{.}985g$ of dimethylphthalate is combusted in a calorimeter whose heat capacity $(C_{\text{c}\text{a}\text{l}\text{o}\text{r}\text{i}\text{m}\text{e}\text{t}\text{e}\text{r}})$ is $7\mathrm{.}80k\frac{J}{}C$ at $21\mathrm{.}0C.$ What is the final temperature of the calorimeter?

$C$