Problem related to the molar concentration of ammonia

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Question- a) Theoretical values of pH and [H+] if the experimental value of pH is 11.12 and the molar concentration of ammonia is 0.100

b) Theoretical values of pH and [H+] if the experimental value of pH is 5.33 and the molar concentration of sodium thiosulfate is 0.100

c) Theoretical values of pH and [H+] if the experimental value of pH is 7.33 and the buffer solution is 0.10 M CH3COOH-0.1M CH3COONa

d) Theoretical values of pH and [H+] if the experimental value of pH is 9.52 and the buffer solution is 0.100 NH3-0.100 M Nh4Cl

I am need of complete solution for this problem please help- me out to get right solution

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