August 2018 NY Regents Chemistry Exam
19 Compared to H2S, the higher boiling point of H2O is due to the (1) greater molecular size of water (2) stronger hydrogen bonding in water
(3) higher molarity of water (4) larger gram-formula mass of water
Solution: Compounds with stronger intermolecular forces have higher boiling points. Hydrogen bonding is a type an intermolecular force and is present between molecules that have OH, NH or HF which H2O but not H2S has.
Answer:2
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