Question

Table 1. % Yield Calculations For The Formation Of Crude IP Salt Samples

				Reagents	IP Salt			(?)-Ibuprofen
Notebook Reference	Description		Racemic ibuprofen (mass and moles)	(S)- phenethylamine (mass and moles)	Theoretical Yield	Actual mass salt recovered (% yield)		% Recovery*
MP-1	Trial 1 IP Salt synthesis	heated in water at 75C	30.6 g (0.148 mole)	17.9 g (19 mL, 14.8 mmole)	48.5 g	31.0 g (63.9%)		63.9%
MP-2	Trial 2 IP Salt synthesis	dissolved in 300 mL of 0.5 M KOH at ~75˚C	30.6 g (0.148 mol)	19 mL (0.148 mol)		25 g
MP-3	Trial 3 IP Salt synthesis	MP-1 Procedure was repeated except an excess of (S)-α-phenethylamine (95 mL, ~0.74 mol) was used	30.6 g (0.148 mol)	95 mL (0.74 mol)		2.3 g

* Assuming a 100% yield for the recovery of (?)-ibuprofen from the IP Salt

Could you please do an example calculation to show me how to get the theoretical yield and % recovery to fill in the last two blank columns? Thank you!

Answer 1