A hydrogen bond acceptor can be defined as any chemical compound possessing non-bonding or lone electron pairs that engage in the formation of a hydrogen bond. For a compound to qualify as a hydrogen bond acceptor, it is necessary that it comprises of an element which is more electronegative than hydrogen, and that too with lone electron pairs. This particular element is instrumental in attracting protons from a donor, thereby enabling the necessary interaction required for hydrogen bonding to occur. Typically, the electronegative atoms that are involved in hydrogen bonding are those of nitrogen, oxygen and fluorine.Can you provide me with the number of acceptors for hydrogen bonding that the molecule is composed of?