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1) An acetic acid/sodium acetate buffer is made that is 0.78 M in acetic acid and...

1) An acetic acid/sodium acetate buffer is made that is 0.78 M in acetic acid and 0.78 M in sodium acetate. Calculate the pH after 0.045 mol of KOH is added to 1.0 L of the buffer. (Assume no volume change.)

2) Match the compound with the correct classification. (Choices may be use any number of times.) (strong base, weak base,weak acid, strong acid, neutral)

HNO3

HBrO2

CH3NH2

NaCN

NaBr

3. Rank the following in order from most acidic to most basic (lowest pH to hightest pH). You may need Ka and Kb values from the table in your textbook.

HNO3, NH3, HCN, NaOCl, NaOH

a.

HNO3, HCN, NH3, NaOCl, NaOH
b.

HNO3, HCN, NaOCl, NH3, NaOH
c.

NaOH, NH3, HCN, NaOCl, HNO3
d.

HNO3, NaOCl, HCN, NH3, NaOH
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