Chapter 3, Problem 3.28P

The original synthesis for ibuprofen, developed in the 1 960s, had a percent atom economy of 40.0%. In the 1990s, BHC Co. developed a “greener” three-step synthesisfor ibuprofen with a percent atom economy of 77.5%. In the three-step synthesis, 4 moles of H, 2 moles of C, and 2 moles ofO are wasted for every mole of ibuprofen produced.
(a) Calculate the total mass (in g) wasted for every one mole of ibuprofen produced.
(b) Yearly production of ibuprofen is approximately 30 million pounds. Calculate the number of moles of ibuprofen produced each year. $\left(\text{1 kg}=\text{2}.\text{2}0\text{ 1hs}.\right)$
(c) Calculate the total mass (in kg) wasted in the annual production ibuprofen by BHC Co.’s three-step synthesis.