Question

HO Br Mg MgBr ether ether bromobenzene benzophenone triphenylmethanol

Compound	Mol. Weight (g)	mmol	amount (in g or mL)	melting point (°C)	Density (g/mL)	Ref.
bromobenzene	157.01	4.00	0.628	n/a	1.491	1
magnesium powder	120.37	4.00	0.097	n/a	n/a	2
ethyl ether	74.12	n/a	5.00	n/a	0.706	3
benzophenone	182.22	3.8	0.692	47-51	n/a	4
triphenylmethanol	260.33			160-163	n/a	5
5% HCl (aq.)	36.46	n/a	2.00	n/a	n/a	6

With this information, what is the theoretical yield of triphenylmethanol?

Answer 1

Here we are using 3.8 mmol of benzophenone, so theoretically we will get 3.8 mmol of (100% yield) triphenylmethanol weight of triphenylmethanol = 3.8 times 260.33 = 989.254 gm