Which of the following aqueous solutions are good buffer systems? 0.21 M hydroiodic acid 0.23 M...

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Which of the following aqueous solutions are good buffer systems? 0.21 M hydroiodic acid 0.23 M potassium iodide 0.13 M hypoc

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Answer 1

Answer #1

acidic buffer is formed by weak acid and salt of weak acid

basic buffer is formed by weak base and salt of weak base

Option 1:

HI is strong acid and KI is neutral salt.

They will not form buffer

Option 2:

HClO is weak acid.

NaClO is its conjugate base.

They form acidic buffer

Option 3:

HF is weak acid.

NaF is its conjugate base.

They form acidic buffer

Option 4:

NH3 is weak base.

NH4+ is its conjugate acid.

They form basic buffer.

Option 5:

NaOH is strong base.

NaBr is neutral salt.

They will not form buffer

Answer: option 2, 3, 4

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Answer 2

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