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Basic Buffer Action

in a basic bu...

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in a basic buffer 0.0025mole of NH_4Cl and 0.15 mole of NH_4OH are present .The pH of the solution will be( pKa)= 4.74

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Q. In a basic buffer,

0.0025

N H_{4} C l

0.15 m o l e

N H_{4} O H

are present. The

p H

of the solution will be:

(p K_{a}) = 4.74

Q. 1 lit of a buffer solution contains 0.1 mole each of

N H_{4} O H

N H_{4} C l

. What will be the

p^{H}

of the solution when 0.01 mole of HCl is added to it?

[P^{K b} o f N H_{4} O H = 4.74]

Q. In what volume ratio NH4Cl and NH4OH having 1M concentration should be mixed to get a buffer solution of pH=9.26 (pK_b of NH4OH = 4.74?

p K_{b}

N H_{4} O H

at certain temperature is 4.74 The pH of basic buffer containing equimolar concentration of

N H_{4} O H

N H_{C} I

p K_{b}

N H_{4} O H

4.74

. If the ratio of the buffer mixture

[N H_{4} C l] : [N H_{4} O H]

1 : 10

p H

of that buffer is:

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