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16.6 g of HCl must be added to a liter of a buffer that is 1.4 M in acetic acid and 0.75 M in sodium acetate to result in a buffer pH of 3.94.
A buffer is a solution that can withstand changes in pH caused by the addition of acidic or basic components. It can neutralize small amounts of added acid or base, allowing the pH of the solution to remain relatively stable. This is critical for processes and/or reactions that necessitate specific and stable pH ranges.
A buffer is made up of a weak acid and either its conjugate base or its conjugate acid. Buffer capacity is the amount of acid or base that can be added to a buffer before the pH changes. A buffer solution is bicarbonate in blood, which keeps the body's internal pH stable.
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