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Examples of Strong and Weak Acids and Bases and Buffers

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This solution is an answer to finding the pH of a solution if it is either a strong acid/base or a weak acid/base or a buffer containing a weak acid and its conjugate or weak base and it's conjugate.

1.
a) Give examples of strong acids and bases.
b) find the pH of 0.01 M and 0.001 M solution
of each.

2.
a) Give examples of weak acids and bases.
b) find the pH of 0.01 M solution
of each.

3.
a) Give examples for a buffer solution containing weak acid and its conjugate.
b) find the pH of solution containing equal amounts of each. Find the pH when the
concentration of the conjugate base is 1000 time that of the acid.

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https://brainmass.com/chemistry/acids-and-bases/examples-strong-weak-acids-bases-buffers-523031

Solution Preview

1.
a) An example of a strong acid is HCl (hydrochloric acid). An example of a strong base is
NaOH (sodium hydroxide).
b) To find the pH of a strong acid , you just need to find out -log[H+] where [H+] is the hydrogen ion concentration.
For strong acids, since they dissociate completely, [H+] = concentration of the acid. Therefore for 0.01M HCl,
pH= -log(0.01) =2. For 0.001 M solution, pH= -log(0.001), which ...

Solution Summary

Examples of strong and weak acids and bases and buffers are provided. The expert finds the pH when the concentration of conjugate bases is an acid.

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See Also This Related BrainMass Solution

Determining the pH of an acid and base in various situations by working with concentrations. A multi-step question.

Part 1: What is the pH of a solution of 1M HCO3 and 1M CO3?

Part 2: What is the pH if it was mixed with an equal volume of water?

Part 3: What is the pH if it was mixed with an equal volume of 0.001 M HCl?

Part 4: What is the pH if it was mixed with an equal volume of 0.001 M NaOH?

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