In the acid-base reaction: HCN(aq) + F-(aq)
CN-(aq) + HF(aq) , where Ka (HCN) = 4.9 × 10-10 and Ka (HF) = 7.2 × 10-4, the
A) products are favored.
B) reactants are favored.
Correct Answer:
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Q1: Which species is the conjugate base of
Q1: An Arrhenius acid is
A)a compound that contains
Q4: Which species can act as a Brønsted-Lowry
Q7: Which species is a diprotic acid?
A)Mg(OH)2
B)CH3COOH
C)H2
D)H2CO3
Q9: Which species is the conjugate acid of
Q13: A Brønsted-Lowry acid is _.
A)a compound that
Q22: Which ion is the strongest base?
A)Br-
B)F-
C)I-
D)NO3-
Q28: Which acid is the weakest?
A)Hydrogen sulfate ion
Q29: Which solution has the highest pH?
A)4.3 ×
Q39: Which compound is a weak acid?
A)HNO3
B)HBr
C)CH3COOH
D)H2SO4
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