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8. Use the Henderson-Hasselbalch equation to calculate the pH of each solution. a solution that is 0.18 M in HCHO2 and 0.12 M in NaCHO2 (Ka(HCHO2)=1.8×10−4) Express your answer to two decimal places. Part B a solution that is 0.14 M in NH3 and 0.20 M in NH4Cl (Kb(NH3)=1.76×10−5) Express your answer to two decimal places. 3.

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