Colchicine, C₂₂H₂₅NO₆, is a naturally occurring compound that has been used as a medicine since the time of the pharaohs in ancient Egypt. Although the reasons for its effectiveness are not yet clearly understood, it is still used to treat the infl ammation in joints caused by a gout attack.

(a) What is the molar mass of colchicine?

(b) What is the mass, in grams, of 3.2 × 10²² molecules of colchicine?

(c) How many moles of colchicine are in a 326-g sample?

(d) How many carbon atoms are present in 50 molecules of colchicine?