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CHEM2A Chp 10
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At 25°C (room temperature), the value of Kw is ________.
 
1.00 × 10^-14
 
1.00 × 10^14
 
1.00 × 10^-7
 
1.00 × 10^7
According to Bronsted-Lowry theory, acid-base reactions can be described as ________ reactions.
 
proton transfer
 
electron transfer
 
nuclear transfer
 
ion transfer
Which solution is basic?
 
[H3O+] = 1.0 × 10^-10
 
[OH-] = 1.0 × 10^-10
 
[H3O+] = 1.0 × 10^-4
 
[OH-] = 1.0 × 10^-7
Which compound has a very large value of Ka in aqueous solution?
 
HNO3
 
H3PO4
 
NH3
 
KOH
Acetic acid is a weak acid in water because it is
 
only slightly dissociated into ions.
 
only slightly soluble.
 
unable to hold onto its hydrogen ion.
 
completely dissociated into hydronium ions and acetate ions.
Which of the following is a triprotic acid?
 
H3PO4
 
NH3
 
HNO3
 
CH3COOH
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.
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