The ionization constant for NH4+ is K = 5.8 x 10-10 at 25°C. It is in a reversible equilibrium with ammonia and H+. NH4+ --> NH3 + H+ where, H+ + NH3 --> NH4* with a k₁ = 4.000 x 1010 M-1 S-1 A temperature jump from 20°C to 25°C is made on a 0.1 M NH4Cl solution at pH 6. Calculate the relaxation time in microseconds for the reaction, assuming that the mechanism is given by the ionization equation shown. Assume that the pH is buffered.

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The ionization constant for NH4+ is K = 5.8 x 10-10 at 25°C. It is in a reversible
equilibrium with ammonia and H+.
NH4+ --> NH3 + H+
where, H+ + NH3 --> NH4* with a k₁ = 4.000 x 1010 M-1 s-1
A temperature jump from 20°C to 25°C is made on a 0.1 M NH4Cl solution at pH 6.
Calculate the relaxation time in microseconds for the reaction, assuming that the
mechanism is given by the ionization equation shown. Assume that the pH is
buffered.
Transcribed Image Text:The ionization constant for NH4+ is K = 5.8 x 10-10 at 25°C. It is in a reversible equilibrium with ammonia and H+. NH4+ --> NH3 + H+ where, H+ + NH3 --> NH4* with a k₁ = 4.000 x 1010 M-1 s-1 A temperature jump from 20°C to 25°C is made on a 0.1 M NH4Cl solution at pH 6. Calculate the relaxation time in microseconds for the reaction, assuming that the mechanism is given by the ionization equation shown. Assume that the pH is buffered.
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