Problem: The beaker on the right contains 0.1 M acetic acid solution with methyl orange as an indicator. The beaker on the left contains a mixture of 0.1 M acetic acid and 0.1 M sodium acetate with methyl orange.Which solution is better able to maintain its pH when small amounts of NaOH are added? Explain.

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FREE Expert Solution

We are asked which solution is better able to maintain its pH when small amounts of NaOH are added?

What we basically have here is:

  • Solution A: acetic acid (Weak acid)
  • Solution B: acetic acid (Weak acid) and sodium acetate (conjugate base)
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Problem Details

The beaker on the right contains 0.1 M acetic acid solution with methyl orange as an indicator. The beaker on the left contains a mixture of 0.1 M acetic acid and 0.1 M sodium acetate with methyl orange.
The left beaker contains a yellow solution and the right beaker contains a purple/pink solution.

Which solution is better able to maintain its pH when small amounts of NaOH are added? Explain.