A Solution at PH 7 Contains a Weak Acid, HA

question 82

Multiple Choice

A solution at pH 7 contains a weak acid, HA. The pK_a of the acid is 6.5. What is the ratio of [A−]:[HA]?

• A) 1:3
• B) 1:1
• C) 3:1
• D) 10:1

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