Problem: If solutions of NH4Cl(aq) and NH3(aq) are mixed, which ions in the resulting solution are spectator ions in any acid-base chemistry occurring in the solution?

FREE Expert Solution

We’re being asked to identify the spectator ions in the reaction between NH4Cl(aq) and NH3(aq).


Note that we are given with a buffer system, for which a weak base and its conjugate acid is present:

  • NH3 is a weak base as it is a nonelectrolyte. Though it captures H+ in water to produce OH- in solution, it is a reversible process and more NH3 remains.
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Problem Details

If solutions of NH4Cl(aq) and NH3(aq) are mixed, which ions in the resulting solution are spectator ions in any acid-base chemistry occurring in the solution?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Buffer concept. You can view video lessons to learn Buffer. Or if you need more Buffer practice, you can also practice Buffer practice problems.

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Based on our data, we think this problem is relevant for Professor Wiens' class at CNM.