| Answer
to 1c. |
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| n | At the 0 volume
point, no acid has been |
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| added. Thus the
concentration of the base |
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| is unchanged from
the original. |
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| n | Because
NH3 is a weak base, we must |
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| calculate its pOH
using the Kb reaction |
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| n | NH3
+ H2O(l) NH4+(aq) + OH-(aq)
Kb=1.8(10-5) |
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| 3 |
| -x |
| 3-x |