Calculate the PH of a Buffer Solution That Contains 0

question 110

Multiple Choice

Calculate the pH of a buffer solution that contains 0.25 M benzoic acid (C₆H₅CO₂H) and 0.15M sodium benzoate (C₆H₅COONa) .[K_a = 6.5 × 10^-5 for benzoic acid]

• A)3.97
• B)4.83
• C)4.19
• D)3.40
• E)4.41

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Definitions:

Placenta

An organ that develops in female mammals during pregnancy, providing oxygen and nutrients to and removing waste from the developing fetus.

Miscarriage

The spontaneous loss of a pregnancy before the fetus can survive outside the womb, typically occurring before the 20th week of gestation.

Oocyte Membrane

The outer covering of an oocyte, or egg cell, that regulates the entry and exit of substances.

Sperm Membrane

The outer layer of a sperm cell that protects genetic material and mediates its interaction with the egg during fertilization.