The pH of 1 M CH3COONa solution in water will be nearly (pKa for CH3COOH = 4.74)
The pH of 1 M CH3COONa solution in water will be nearly (pKa for CH3COOH = 4.74)
Option 1 -
6.4
Option 2 -
10.4
Option 3 -
9.4
Option 4 -
7.4
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1 Answer
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Correct Option - 3
Detailed Solution:
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0.01 M NaOH,
M = 1 * 10-2
pOH = 2
pH = 2
Kp = Kc (RT)Dng
36 * 10–2 = Kc (0.0821 * 300)–1
Kc = 0.36 * 0.0821 * 300 = 8.86 » 9
A(g) ->B(g) + (g)
Initial moles n 0 0
Eqb. moles n(1 – a) na
total moles =
Eqb. pressure
On increasing pressure, equilibrium moves in that direction where number of gaseous moles decreases.
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