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Which may be added to one litre of water...

Which may be added to one litre of water to act a buffer?

A

One mole of `CH_(3)COOH` and one mole of `HCl`

B

One mole of `NH(4)OH` and one mole of `NaOH`.

C

One mole of `NH_(4)Cl` and one mole of `HCl`

D

One mole of `CH_(3)COOH`and `0.5`mole of `NaOH`.

Text Solution

Verified by Experts

`HC_(2)H_(3)O_(2)+NaOH+C_(2)H_(2)O_(2)Na+H_(2)O`
`{:(n_(i),1,0.5,0,0),(n_(f),0.5,0,0.5,0.5):}`
This solution contain weak acid & its salt with strong base and thus acts as buffer.
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Knowledge Check

  • Which may be added to one litre of water to act as a buffer

    A
    One mole of `HC_(2)H_(3)O_(2)` and 0.5 mole of NaOH
    B
    One mole of `NH_(4)Cl` and one mole of HCl
    C
    One mole of `NH_(4)OH` and one mole of NaOH
    D
    One mole of `HC_(2)H_(3)O_(2)` and one mole of HCl

  • What weight of NaCl is added to one litre of water so that Delta"T"//"K"_("f")=1/500?

    A
    5.85g
    B
    0.585g
    C
    0.0585g
    D
    0.0855g

  • 2 g of sugar is added to one litre of water to give sugar solution. What is the effect of addition of sugar on the boiling point and freezing point of water ?

    A
    Both boiling point and freezing point increase
    B
    Both boiling point and freezing point decrease
    C
    Boiling point increases and freezing point decreases
    D
    Boiling point decreases and freezing point increases.
    • RESONANCE-IONIC EQUILIBRIUM-Exercise 1 part 2 only one option correct type
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    4. pH of a mixture containing 0.10 M X^(-) and 0.20 M HX is: [pK(b)(X^(-)...

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    5. K(a) for HCN is 5 xx 10^^(-10) at 25^(@)C. For maintaining a constant ...

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    6. The composition of an acidic buffer mixture made up of HA and NaA of t...

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    7. The pH of a solution resulting from the addition of 12.5mL of 0.1M HCl...

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    8. What % of the carbon in the H(2)CO(3)-HCO(3)^(-) buffer should be in t...

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    9. Buffer capacity of a buffer solution is x, the volume of 1 M NaOH adde...

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    10. A certain indicator (an organic dye) has pK(a)=5. For which of the fol...

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    11. The best indicator for detection of end point in titration of a weak a...

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    12. At pH lt3.1, the indicator methyl red is coloured red ,at pH gt 6.3 , ...

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    13. Upon titrating 50mL of 1.96%(w//v) H(2)SO(4) with a KOH solution (cont...

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    14. 100mL of 0.2M benzoic acid (pk(a)=4.2) is titrated using 0.2 M NaOH pH...

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    15. Which of the following solutions have different pH? 100mL" of "0.2m"...

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    16. Upon titrating a solution of weak monoprotic acid with a weak monoacid...

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    17. The total number of different kind of buffers obtained during the titr...

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    18. What will be the pH at the equivalence point during the titration of a...

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