In: Chemistry
A) Why does a buffer solution require a weak acid/base conjugate pair, as opposed to a strong acid, and its conjugate?
A strong acid will completely dissociate, suggesting that the conjugate base is really weak and will not neutralize any additional H+ ions. |
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A strong acid will completely dissociate, suggesting that the conjugate base is really strong and will not neutralize any additional H+ ions. |
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A strong acid will only partially dissociate, suggesting that the conjugate base is really weak and will not neutralize any additional H+ ions. |
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A strong acid will only partially dissociate, suggesting that the conjugate base is really strong and will not neutralize any additional H+ ions. |
B) Write out reactions that show how a buffer of HCN/NaCN is able to control pH after the addition of HCl.
NaCN(aq) + HCN(aq)↔ HCl(aq) + NaCl(aq) |
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HCN(aq)+ HCl(aq)↔ NaCN(aq) + H2O(l) |
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NaCN(aq) + HCl(aq)↔ HCN(aq) + NaOH(aq) |
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NaCN(aq) + HCl(aq) ↔ HCN(aq) + NaCl(aq) |