1. Phenylamine is an aromatic amine that is used in the manufacture of dyes. When absorbed through the skin it causes the Fe*2 in hemoglobin to become oxidized into Fe*³, resulting in the formation of methemoglobin which cannot bind to or transport oxygen. Phenylamine is soluble in water and acts as a weak base. a. a. C6H5NH₂ (aq) + H₂O () C6H5NH3* (aq) + OH- (aq) When you measure the concentrations of the ionized substances you find them to be: [C6H5NH₂] = 0.234 mol/L [C6H5NH3*] = 2.8 x 10-³ mol/L [OH-]= 2.8 x 10¹5 mol/L If the Kb is 4.27 x 10-10, is the reaction at equilibrium? If not, which direction does it need to move (right or left) to reach equilibrium? Explain. At equilibrium the concentrations of the ionized substances are: [C6H5NH₂] = 0.0537 mol/L [C6H5NH3*] = 4.79 x 10-6 mol/L [OH-] = 4.79 x 106 mol/L If this reaction is taking place in a 2.0L container, and 1.5 moles of phenylamine were added to the reaction, what will the new concentrations of the three ionic species be when equilibrium is re-established

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Chapter11: Chemical Kinetics
Section: Chapter Questions
Problem 11.8PAE
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1. Phenylamine is an aromatic amine that is used in the manufacture of dyes. When absorbed through
the skin it causes the Fe*2 in hemoglobin to become oxidized into Fe*³, resulting in the formation of
methemoglobin which cannot bind to or transport oxygen. Phenylamine is soluble in water and acts as
a weak base.
a.
a.
C6H5NH2 (aq) + H₂O (l) C6H5NH3* (aq) + OH- (aq)
When you measure the concentrations of the ionized substances you find them to be:
[C6H5NH₂] = 0.234 mol/L [C6H5NH3*] = 2.8 x 10-5 mol/L [OH-]= 2.8 x 10-5 mol/L
If the Kb is 4.27 x 10-10, is the reaction at equilibrium? If not, which direction does it need to
move (right or left) to reach equilibrium? Explain.
At equilibrium the concentrations of the ionized substances are:
[C6H5NH₂] = 0.0537 mol/L [C6H5NH3*] = 4.79 x 106 mol/L
[OH-]= 4.79 x 10¹6 mol/L
If this reaction is taking place in a 2.0L container, and 1.5 moles of phenylamine were added to
the reaction, what will the new concentrations of the three ionic species be when equilibrium is
re-established
CoHsNHz (aq)
+ H₂O (l)
5
C6H5NH3+ (aq) +
OH(aq)
Transcribed Image Text:E' I U E 1. Phenylamine is an aromatic amine that is used in the manufacture of dyes. When absorbed through the skin it causes the Fe*2 in hemoglobin to become oxidized into Fe*³, resulting in the formation of methemoglobin which cannot bind to or transport oxygen. Phenylamine is soluble in water and acts as a weak base. a. a. C6H5NH2 (aq) + H₂O (l) C6H5NH3* (aq) + OH- (aq) When you measure the concentrations of the ionized substances you find them to be: [C6H5NH₂] = 0.234 mol/L [C6H5NH3*] = 2.8 x 10-5 mol/L [OH-]= 2.8 x 10-5 mol/L If the Kb is 4.27 x 10-10, is the reaction at equilibrium? If not, which direction does it need to move (right or left) to reach equilibrium? Explain. At equilibrium the concentrations of the ionized substances are: [C6H5NH₂] = 0.0537 mol/L [C6H5NH3*] = 4.79 x 106 mol/L [OH-]= 4.79 x 10¹6 mol/L If this reaction is taking place in a 2.0L container, and 1.5 moles of phenylamine were added to the reaction, what will the new concentrations of the three ionic species be when equilibrium is re-established CoHsNHz (aq) + H₂O (l) 5 C6H5NH3+ (aq) + OH(aq)
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