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Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
c .A buffer is a system of chemicals that resists a change in pH
2. Cell Chemistry & Cell Components
Acids and Bases
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The addition of an acid like HCl to an aqueous solution (pure water) would result in:
a) An increase in pH only.
b) Both the release of H+ and an increase in pH.
c) Both the release of H+ and a decrease in pH.
d) The release of H+ into the solution only.
e) A decrease in pH only.
A
An increase in pH only.
B
Both the release of H+ and an increase in pH.
C
Both the release of H+ and a decrease in pH.
D
The release of H+ into the solution only.
E
A decrease in pH only.
Verified step by step guidance1
Understand that HCl is a strong acid, which means it dissociates completely in water to release H+ ions and Cl- ions.
Recognize that the release of H+ ions into the solution increases the concentration of hydrogen ions in the water.
Recall that pH is a measure of the hydrogen ion concentration in a solution, where a higher concentration of H+ ions results in a lower pH value.
Identify that an increase in H+ ion concentration leads to a decrease in pH, as pH is inversely related to hydrogen ion concentration.
Conclude that the addition of HCl to water results in both the release of H+ ions and a decrease in pH, as the solution becomes more acidic.
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