Which of the Following Acids Has the Lowest PH

question 18

Multiple Choice

Which of the following acids has the lowest pH?

• A) 0.1 M HBO, pK_a = 2.43
• B) 0.1 M HA, pK_a = 4.55
• C) 0.1 M HMO, pK_a = 8.23
• D) 0.1 M HST, pK_a = 11.89
• E) pure water

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