Question

using the procedure above complete the stoichiometry table

Procedure In an oven-dried, 100 ml round bottom flask containing magnetic stirring bar was added hydrobenzoin (1.0 8.4.7 mmol), anhydrous iron(III) chloride (0.3 g, 1.8 mmol), and anhydrous acetone (30 ml). The mixture was heated to reflux and stirred for 30 min. The reaction mixture was cooled tort and transferred to a separatory funnel containing 10% aq potassium carbonate (10 mL). Water (50 mL) was added and the aqueous solution was extracted with dichloromethane (2 x 20 mL). The combined organic extracts were washed with water (25 ml), brine (20 ml), dried with anhydrous sodium sulfate, and concentrated. To the resulting residue was added boiling petroleoum ether (15-20 mL), the solids were filtered and the mother liquor was concentrated to approximately 5 ml to initiate crystallization. The flask was cooled to 0 °C and the product was collected by filtration to give the acetonide as a white crystalline solid.