904891
Pregunta 1
Pregunta
What is the pOH of a 0.350 M solution of Nitric Acid?
Respuesta
-
0.460
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6.70
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12.0
-
13.5
Pregunta 2
Pregunta
Which of the following has the most impact on the acidity of a halogen acid, HX?
Respuesta
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The electronegativity of X
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The strength of the H-X bond
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The electron affinity of X
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The ionization potential of H
Pregunta 3
Pregunta
What is the [H+] in a 0.1 M solution of Nitric Acid into which 0.2 moles per liter of HCl is dissolved?
Respuesta
-
0.1 M
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0.15 M
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0.2 M
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0.3 M
Pregunta 4
Pregunta
What is the pH of a 0.520 M solution of NaOH?
Respuesta
-
0.280
-
14.0
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0.140
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13.7
Pregunta 5
Pregunta
What happens to the pH of a solution of NaOH when BaSO4 is added?
Respuesta
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The pH increase.
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The pH decreases.
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The pH first increases then decreases.
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The pH first decreases then increases.
Pregunta 6
Pregunta
What is the pH of a 1.0 M solution of NaCl in water?
Respuesta
-
5.5
-
7
-
8.5
-
0
Pregunta 7
Pregunta
What condition must be satisfied to make a good buffer?
Respuesta
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You must mix a strong acid with its conjugate base.
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You must mix a weak acid with its conjugate base.
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The ratio of base to acid must be around 10.
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The ratio of base to acid must be around 1.
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