1) The pH of a buffer system containing NH3 and NH4Cl is found to be 9.35. Calculate the ratio NH3/NH4Cl.
2) The pH of a buffer system containing Na2HPO4 and KH2PO4 is found to be 6.66. Calculate the ratio Na2HPO4/KH2PO4.

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1) The pH of a buffer system containing NH3 and NH4Cl is found to be 9.35....
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6. (a) Calculate the pH of the 0.39 M NH3/ 0.73 M NH4Cl buffer system. pH = (b) What is the pH after the addition of 20.0 mL of 0.075 M NaOH to 80.0 mL of the buffer solution? pH =
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16.17. Calculate the ph of the nh3 0.20 m/nh4cl 0.20 M dampening system. What is the Ph of the buffer dissolution after adding 10.0 ml of HCl 0.10 M to 65.0 ml of the dampening system.
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