14. 1.Solve all a) Classify each of these compounds as an Arrhenius acid, an Arr
ID: 523544 • Letter: 1
Question
14.
1.Solve all
a)
Classify each of these compounds as an Arrhenius acid, an Arrhenius base, or neither.
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b)The oxyacids containing oxygen (O) and phosphorous (P) are named differently than the oxyanions on which they are based. You have just learned that in general -ite endings are changed to -ous while -ate endings are changed to -ic when naming the acid. However, for the acids of oxyanions based on phosphorus, the root also changes. The roots for the oxyanions and oxyacids of phosphorus are shown below.
oxyanion root: phosph
oxyacid root: phosphor
Although the exception exists for the root, the prefixes and suffixes of these oxyacids still follow the conventions for naming oxyacids. Using the table of oxyanions given in the transition before Part B and the roots shown above, give the name of the oxyacid H3PO3 below.
Spell out the full name of the acid.
c)
Carbonic acid reacts with water to yield bicarbonate ions and hydronium ions:
H2CO3+H2OHCO3+H3O+
Identify the conjugate acid-base pairs.
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Acid
Conjugate base
Base
Conjugate acid
d)
Classify each of these compounds as a Brønsted-Lowry acid, a Brønsted-Lowry base, or neither.
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HCIOExplanation / Answer
(a)
Arrhenius acid: The species that produce H+ ions (potons) in aqueous medium are called acids.
Arrhenius base: The species the produce OH- ions (hydroxyl) in aqueous medium are called bases.
HClO3 Arrhenius acid
NaOH Arrhenius Base
H3PO4 Arrhenius acid
HCl Arrhenius acid
Zn(OH)2 Arrhenius Base
KCl Neither
Hg(OH)2 Arrhenius Base
Al(OH)3 Arrhenius Base
HBr Arrhenius acid
C3H8 Neither
(b) H3PO3 = Phophorous acid
(c) An acid base pair differed by only one proton is called conjugate acid - base pair.
H2CO3 and HCO3- is a conjugate acid - base pair.
H3O+ and H2O is a conjugate acid - base pair.
(d) Bronsted - Lowry acid : Proton donor
Bronsted - Lowry base: Proton acceptor
HCl Acid
HBr Acid
HClO4 Acid
(C2H5)2NH Base
C2H5NH2 Base
NH3 Base
KBr Neither
CH2Cl2 Neither
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