In the following reaction sequence, the major product P is formed. Glycerol reacts completely with excess P in the presence of an acid catalyst to form Q . Reaction of Q with excess NaOH followed by the treatment with CaCl ₂ yields Ca-soap R , quantitatively. Starting with one mole of Q , the amount of R produced in gram is ________. [Given, atomic weight: H =1, C =12, ~N =14, O =16, Na =23, Cl =35, Ca =40 ]