Which of the following is the correct order of acid strength, weakest to strongest ?

Question

a) H2PO4− < HNO3 < NH4+ < HSO4


b) HNO3 < HSO4 < H2PO4− < NH4+


c) NH4+ < H2PO4− < HSO4 < HNO3


d) HSO4 < NH4+ < H2PO4− < HNO3

Answer 1

C. HNO3 is the strongest of all the acids given, so only choices c and d are correct. Then, HSO4(-1) is stronger than H2PO4(-1), so the correct answer is C.

Answer 2

because those compounds aren't to any extent further in a series that you'll easily relate to, I advise searching up the pKa values. From that the order is H3O+ (-a million.7), HN3 (4.6), HONH3+ (5.ninety seven), CH3SH (10.4), CH3OH (15.5). All pKa values from Wikipedia. i'd be careful about utilising electronegativity in predicting acidity because it calls for some absurd predictions, which contain HF is ionic, yet would not ionize at the same time as hi is covalent, yet thoroughly ionizes. the more desirable the nuclear charge, the further electrons are in contact in it quite works for me.

Answer 3

c