Evaluate the concentrations of all species present

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Reference no: EM13502976

Part A

a.) A 175.8mL sample of 0.380M acetic acid (CH3CO2H) was allowed to react with 1.915L of gaseous ammonia at 25 degrees C and a pressure of 648.4 mmHg.

Assuming no change in the volume of the solution, calculate the pH. Values of equilibrium constants are listed below:
Compound
Acetic Acid CH3CO2H Ka = 1.8*10^-5
Ammonia NH3 Kb = 1.8*10^-5

b.) Assuming no change in the volume of the solution, what are the equilibrium concentrations of all species present (CH3CO2H,CH3CO2-,NH3,NH4+,H3O+ and OH-) in M? Express using two sig figs.

Part B
Aniline (C6H5NH2) is an organic base used in the manufacture of dyes.

a.) Calculate the pH in a 0.14M solution of aniline (Kb = 4.3*10^-10)

b.) Calculate the concentrations of all species present (C6H5NH2,C6H5NH3+,OH-, and H3O+ ) in a 0.14M solution of aniline. Express using two sig figs.

Reference no: EM13502976

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