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Henderson Hasselbalch Equation

Q. Calculate the pH of a solution formed by mixing 150.0 mL of 0.10 M HC7H5O2 with 100.0 mL of 0.30 M NaC7H5O2. The Ka for HC7H5O2 is 6.5 × 10^-5. A) 4.19 B) 4.31 C) 9.69 D) 10.51 E) 3.49

Solved • Jul 15, 2019

Henderson Hasselbalch Equation

Q. Calculate the pH of a buffer that is 0.058 M HF and 0.058 M LiF. The Ka for HF is 3.5 × 10^-4. A) 9.31 B) 2.86 C) 10.54 D) 3.46 E) 4.69

Solved • Jul 15, 2019

Henderson Hasselbalch Equation

Q. Calculate the pH of a solution formed by mixing 100.0 mL of 0.20 M HClO with 200.0 mL of 0.30 M KClO. The Ka for HClO is 2.9 × 10^-8. A) 5.99 B) 7.54 C) 8.01 D) 6.46 E) 7.71

Solved • Jul 15, 2019

Henderson Hasselbalch Equation

Q. Calculate the pH of a buffer that is 0.158 M HClO and 0.099 M NaClO. The Ka for HClO is 2.9 × 10^-8. A) 6.67 B) 7.54 C) 7.33 D) 6.46 E) 3.77

Solved • Jul 15, 2019

Henderson Hasselbalch Equation

Q. Calculate the pH of a solution formed by mixing 250.0 mL of 0.15 M NH4Cl with 200.0 mL of 0.12 M NH3. The Kb for NH3 is 1.8 × 10^-5. A) 4.74 B) 9.06 C) 9.45 D) 4.55 E) 9.26

Solved • Jul 15, 2019

Henderson Hasselbalch Equation

Q. Calculate the pH of a solution formed by mixing 250.0 mL of 0.15 M NH4Cl with 100.0 mL of 0.20 M NH3. The Kb for NH3 is 1.8 x 10^-5. A) 9.53 B) 9.25 C) 9.13 D) 8.98 E) 4.74

Solved • Jul 15, 2019

Henderson Hasselbalch Equation

Q. You wish to prepare an HC2H3O2 buffer with a pH of 5.44. If the pKa of is 4.74, what ratio of C2H3O2−/HC2H3O2 must you use? A) 0.20 B) 0.70 C) 1.4 D) 5.0 E) 1.1

Solved • Jul 15, 2019