Sergey Bylikin, Gary Horner and, Brian Murphy Solutions for Chapter: Stoichiometric Relationships, Exercise 4: Activity

Suggest why even if a chemical reaction has a yield close to $100\%$, the atom economy may be poor. Carry out some research into this aspect.

Discuss some other ways a chemical process may be evaluated other than the atom economy, eg energy consumption etc. 

Deduce the percentage atom economy for the nucleophilic substitution reaction:

${\mathrm{CH}}_3{\left({\mathrm{CH}}_2\right)}_3\mathrm{OH}+\mathrm{NaBr}+{\mathrm{H}}_2{\mathrm{SO}}_4\to {\mathrm{CH}}_3{\left({\mathrm{CH}}_2\right)}_3\mathrm{Br} +{\mathrm{H}}_2\mathrm{O}+{\mathrm{NaHSO}}_4$