A Buffer Contains Equal Concentrations of a Weak Acid, HA,And

question 77

Multiple Choice

A buffer contains equal concentrations of a weak acid, HA,And its conjugate base,A^-.If the value of K_a for HA is 1.0 * 10^-9,What is the pH of the buffer?

• A) 13.0
• B) 5.0
• C) 7.0
• D) 1.0
• E) 9.0

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