Which of the following 1.0 L solutions would produce a buffer with a pH of approximately 3.2? A solution of 0.100 moles of HBr and 0.099 moles of NaOH. solution of 9.100 moles of NH3 (K, = 1.8 × 10-5) and 0.100 moles of NH,CI. A solution of 0.100 moles of HF (K, =6.4 x 10-4) and 0.100 moles of KF. O A solution of 0.100 moles of CH3CO2H (K = 1.8 × 10-³) and 0.100 moles of NaCH3CO2. O A solution of 6.3 x 10-4 moles of HNO3.

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