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Pregunta 1
Pregunta
Acid rain is created when acidic substances, such as sulfur dioxide, are released into and mix with the atmosphere.
Respuesta
- True
- False
Pregunta 2
Pregunta
Acids have a pH of
Respuesta
-
less than 7
-
more than 7
-
4 or less
-
no more than 1
Pregunta 3
Pregunta
Distilled water has a pH of 7. Therefore, on the pH scale, water is
Respuesta
-
strongly basic.
-
mildly acidic.
-
neutral.
-
alkaline.
Pregunta 4
Pregunta
A _____________ resists changes in pH. It is composed of an acid-base pair, and can be used to "protect" other substances from changes in pH.
Respuesta
-
conjugate formula
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buffer solution
-
basic indicator
-
(none of the above)
Pregunta 5
Pregunta
__________ is the process used to determine buffering capacity (how much of an acid or base has to be added before buffers are no longer effective).
Respuesta
-
Titration
-
Burette
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Buffer testing
-
Indication
Pregunta 6
Pregunta
Buffers work because they dissociate so completely in water, they acidify the substance, offsetting the addition of any bases.
Respuesta
- True
- False
Pregunta 7
Pregunta
To create a buffer in an acidic substance, you should add a conjugate base. This forms an acid-base pair.
Respuesta
- True
- False
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