Answer
(i) $-20.98\,J\,K^{-1}mol^{-1}$
(ii) $512.034\,J\,K^{-1}mol^{-1}$
Work Step by Step
$\Delta S^{\circ}_{rxn}=\Sigma n_{p}S^{\circ}(products)-\Sigma n_{r}S^{\circ}(reactants)$
(i) $\Delta S^{\circ}_{rxn}=[S^{\circ}(Zn^{2+}(aq))+S^{\circ}(Cu(s))]-[S^{\circ}(Zn(s))+S^{\circ}(Cu^{2+}(aq))]$
$=[(-112.1 \,J\,K^{-1}mol^{-1})+(33.150\,J\,K^{-1}mol^{-1})]-[(41.63\,J\,K^{-1}mol^{-1})+(-99.6\,J\,K^{-1}mol^{-1})]$
$=-20.98\,J\,K^{-1}mol^{-1}$
(ii) $\Delta S^{\circ}_{rxn}=[12S^{\circ}(CO_{2}(g))+11S^{\circ}(H_{2}O(l))]-[S^{\circ}(C_{12}H_{22}O_{11}(s))+12S^{\circ}(O_{2}(g))]$
$=[12(213.74 \,J\,K^{-1}mol^{-1})+11(69.91\,J\,K^{-1}mol^{-1})]-[(360.2\,J\,K^{-1}mol^{-1})+12(205.138\,J\,K^{-1}mol^{-1})]$
$=512.034\,J\,K^{-1}mol^{-1}$
