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For Maleic Acid, HOOCCH=CHCOOH, Ka1 = 1

Question 177

Multiple Choice

For maleic acid, HOOCCH=CHCOOH, Ka1 = 1.42 × 10-2 and Ka2 = 8.57 × 10-7. What is the concentration of maleate ion (-OOCCH=CHCOO-) in a 0.150 M aqueous solution of maleic acid?


A) 8.57 × 10-7 M
B) 2.79 × 10-6 M
C) 1.86 × 10-5 M
D) 4.60 × 10-2 M
E) 1.19 × 10-1 M

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