(Solved): chem help thanks 6. Balance the combustion reaction of stearic acid. C18H36O2(s)+O2(8) ...

6. Balance the combustion reaction of stearic acid. ${\mathrm{C}}_{18}{\mathrm{H}}_{36}{\mathrm{O}}_{2(s)}+\dots {\mathrm{O}}_{2(8)}?+{\mathrm{CO}}_{2(g)}+\dots {\mathrm{H}}_2{\mathrm{O}}_{(2)}$ 7. Using your answer from question 2 and the heats of formation below, calculate the heat of combustion of galactose. $\begin{array}{l}?H_f^{?}\left({\mathrm{C}}_{18}{\mathrm{H}}_{36}{\mathrm{O}}_2,\mathrm{s}\right)=?891\mathrm{kJ}/\mathrm{mol}\\ ?H_f^{?}\left({\mathrm{H}}_2\mathrm{O},\mathrm{l}\right)=?285.8\mathrm{kJ}/\mathrm{mol}\\ ?H_f^{?}\left({\mathrm{CO}}_2,g\right)=?393.5\mathrm{kJ}/\mathrm{mol}\\ ?H_f^{?}\left({\mathrm{O}}_2,g\right)=0\mathrm{kJ}/\mathrm{mol}\end{array}$ 8. Use the molecular weight of stearic acid $(\mathrm{MW}=284.7772\mathrm{g}/\mathrm{mol})$ to calculate the amount heat released per gram of combusted stearic acid. 9. How many grams of galactose would you need to consume to reach the same amount of energy released from 1 gram of stearic acid?