A necessary requirement for a Bronsted base is:
a lone pair of electrons in its Lewis dot structure.
the presence of water as a reaction medium.
the presence of hydroxide in its formula.
the presence of a metal ion in its formula.
Which of the following is a triprotic acid?
HNO3
H3PO4
CH3COOH
NH3
Acetic acid is a weak acid in water because it is
completely dissociated into hydronium ions and acetate ions.
only slightly dissociated into ions.
unable to hold onto its hydrogen ion.
only slightly soluble.
Which compound has a very large value of Ka in aqueous solution?
HNO3
NH3
KOH
H3PO4
Which solution is basic?
[H3O+] = 1.0 × 10^-10
[H3O+] = 1.0 × 10^-4
[OH-] = 1.0 × 10^-7
[OH-] = 1.0 × 10^-10
According to Bronsted-Lowry theory, acid-base reactions can be described as ________ reactions.
ion transfer
nuclear transfer
proton transfer
electron transfer
At 25°C (room temperature), the value of Kw is ________.
1.00 × 10^-7
1.00 × 10^7
1.00 × 10^-14
1.00 × 10^14
