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9 Bu 8 CH3COO- 7 7 6 5 5 4 Hd 3 2 CH3COOH 1 0 0 0.1 0.3 0.5 0.7 0.9 1.0 OH' added

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9 Bu 8 CH3COO- 7 7 6 5 5 4 Hd 3 2 CH3COOH 1 0 0 0.1 0.3 0.5 0.7 0.9 1.0 OH' added CH3COOH is a weak acid and the titration curve using a strong base (OH) (X axis) is in pink. The gray area is the buffering zone, which ranges from pH 3.5 to 5.5. 1) Accurately calculate the pka of CH3COOH using the buffer range, 2 points. 2) Specify the molecular formula of the conjugatt base of CH3COOH. 2 points 3) Does 0.2 mM CH3COOH have a stronger buffering capacity than 0.2 MM HCI? 2 points. 4) Specity the strongest buffering point (basically a pH number). 2 points, H N

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