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What Is the Hydroxide-Ion Concentration of a 0

Question 47

Multiple Choice

What is the hydroxide-ion concentration of a 0.190 M sodium oxalate (Na2C2O4) solution? For oxalic acid (H2C2O4) ,Ka1 = 5.6 × 10-2 and Ka2 = 5.1 × 10-5.(Kw = 1.01 × 10-14)


A) 6.1 × 10-6 M
B) 1.0 × 10-7 M
C) 7.9 × 10-2 M
D) 3.1 × 10-3 M
E) 1.8 × 10-7 M

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