Problem: What will happen if a small amount of hydrochloric acid is added to a 0.1 M ideal buffer based on HF?

FREE Expert Solution

We are asked what will happen to the percent ionization of the HF when hydrochloric acid is added to a 0.1 M ideal buffer based on HF.


Recall that the percent ionization is given by:


% ionization=[H3O+][HA]initial×100


Remember that weak acids partially dissociate in water and that acids donate H+ to the base (water in this case). 

The maximum buffering capacity of a solution is when the pH of the solution is equal to pKa and the buffer range of a solution is pH = pKa ± 1

 maximum buffering capacity:              pH = pKa

 buffering range:              pH = pKa ± 1


The ideal buffer is when the amount of conjugate base is equal to the amount of the weak acid.

[conjugate base] = [weak acid]


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Problem Details

What will happen if a small amount of hydrochloric acid is added to a 0.1 M ideal buffer based on HF?

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