A 2000-ML Sample of the Weak Acid H₃A (0

question 31

Multiple Choice

A 200.0-mL sample of the weak acid H₃A (0.100 M) is titrated with 0.200 M NaOH. What are the major species at each of the following points in the titration? (Water is always assumed to be a major species.)
-After 350.0 mL of 0.200 M NaOH is added

• A) A^3-
• B) HA^2-, A^3-
• C) HA^2-
• D) OH^-, A^3-
• E) H₂A^-, HA^2-

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Definitions:

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The extra advantage to the entire community from using an additional unit of a product or service.

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Goods that are non-excludable and non-rivalrous, meaning their use by one individual does not reduce availability to others.

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The total cost to society of producing an additional unit of a good or service, taking into account both private costs and any externalities.

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The cost incurred by a firm or individual for producing one additional unit of a good or service, not including external costs.