In a 020 M Solution of a Diprotic Acid H₂A (Ka₁ =

question 140

Multiple Choice

In a 0.20 M solution of a diprotic acid H₂A (Ka₁ = 1.3 × 10^-5 and Ka₂ = 2.7 × 10^-10 at 25°C) ,what is the equilibrium concentration of A^2-?

• A)7.3 × 10^-6 M
• B)2.7 × 10^-10 M
• C)1.6 × 10^-3 M
• D)0.40 M
• E)0.20 M

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A meeting held in February 1945 between the leaders of the United States, the United Kingdom, and the Soviet Union to discuss the postwar reorganization of Europe.

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Yalta Conference

A meeting held in February 1945 between the leaders of the United States, the United Kingdom, and the Soviet Union to discuss the postwar reorganization of Germany and Europe.