Three Acids Found in Foods Are Lactic Acid (In Milk

question 131

Multiple Choice

Three acids found in foods are lactic acid (in milk products) , oxalic acid (in rhubarb) , and malic acid (in apples) . The pK_a values are LA = 3.88, OA = 1.23, and MA = 3.40. Which list has these acids in order of decreasing acid strength?

• A) LA > OA > MA
• B) LA > MA > OA
• C) OA > MA > LA
• D) OA > LA > MA
• E) MA > LA > OA

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