The purpose of a buffer is to maintain a certain pH in a system. Consider the following buffer system: HF and NaF. True or False: In this system the purpose of HF is to neutralize small amounts of base added to the system. true false
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A buffer system consists of a weak acid and its conjugate base. Show more…
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Consider the following questions about buffers and determine if each statement is true or false. true false A buffer based on 1.0 M HF and 1.0 M NaF will be more acidic than a buffer based on 1.0 M acetic acid and 1.0 M sodium acetate. (Ka HF = 7.2 x 10-4, Ka acetic acid = 1.8 x 10-5) true false A 1.0 M solution of HF will be more acidic than a buffer comprised of 1.0 M HF and 1.0 M NaF true false A solution that contains equal concentrations of HOCl (a weak acid) and NaOCl will be a buffer
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A buffer solution has a fixed pH value that does not change at all upon the addition of acid or base. False True A weak base and its conjugate acid is a buffer solution because it can neutralize added base or acid and contains both acidic and basic species. False True
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Categorize each statement as true or false. Buffers are effective at resisting pH changes when large amounts of acid or base are added to a solution. Chemical buffers are important to industrial production and to living systems. Chemical buffers have specific ranges and capacities. The buffer capacity is the pH range that is maintained when acids and bases are added to a solution. True False
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