Buffer capacity of a buffer is given as two units for a change in pH by Unity. Then what is the number of moles of acid or base, added in one litre of the solution?a)2b)0.5c)1d)4Correct answer is option 'A'. Can you explain this answer?

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Buffer capacity of a buffer is given as two units for a change in pH by Unity. Then what is the number of moles of acid or base, added in one litre of the solution?

a)
2
b)
0.5
c)
1
d)
4

Correct answer is option 'A'. Can you explain this answer?

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Buffer capacity of a buffer is given as two units for a change in pH b...

Buffer capacity is denoted by Φ = number of moles of acid or base added to one litre of the buffer by a change in pH. Here the change in pH is given by 1 and the buffer capacity is given by 2, therefore by substituting, we get that 2 moles of acid or base are added in one litre of the solution.

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Buffer capacity of a buffer is given as two units for a change in pH b...

Buffer Capacity Calculation:
- Buffer capacity is defined as the amount of acid or base that can be added to a buffer solution without causing a significant change in pH.
- In this case, the buffer capacity is given as 2 units for a change in pH by Unity.

Calculation:
- Since the buffer capacity is 2 units for a change in pH by Unity, this means that 1 mole of acid/base added would cause a change of 2 units in pH.
- Therefore, to maintain the buffer capacity of 2 units, 1 mole of acid or base needs to be added.

Answer:
- The number of moles of acid or base added in one litre of the solution is 2.
- So, the correct answer is option 'A' - 2.

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Buffer capacity of a buffer is given as two units for a change in pH by Unity. Then what is the number of moles of acid or base, added in one litre of the solution?a)2b)0.5c)1d)4Correct answer is option 'A'. Can you explain this answer?

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