Solved

What Is the PH of a Buffer Composed of 0

Question 31

Multiple Choice

What is the pH of a buffer composed of 0.35 M H₂PO₄^-(aq) and 0.65 M HPO₄^2-(aq) ? (K_a of H₂PO₄^- is 6.2 × 10^-8)

A) 6.94
B) 7.21
C) 7.48
D) 7.73
E) 9.06

Related Questions

Q26: A 50.00-mL solution of 0.0400 M hydrofluoric

Q27: What is the pH of a buffer

Q28: A 5.0 × 10<sup>-4</sup> M solution of

Q29: A certain weak base B has a

Q30: Calculate the pH of a solution made

Q32: You have 75.0 mL of 0.17 M

Q33: A volume of 25.0 mL of 0.100

Q34: Potassium hydrogen phthalate (KHP)is used to standardize

Q35: A 1.0 liter solution contains 0.25 M

Q36: A 50.00-mL solution of 0.0350 M ethylamine