Given the Following List of K_a Values, Determine Which Weak

question 12

Multiple Choice

Given the following list of K_a values, determine which weak acid solution would have the highest pH value at equilibrium assuming all acids have the same initial concentration. ​

• A) HC₂O₄^-
• B) HSO₄^-
• C) H₂PO₄^-
• D) H₂AsO₄^-

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Definitions:

True Score

The actual score that accurately reflects the tested attribute or characteristic without error.

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A consistent and dependable method of measurement that yields the same results under similar conditions.

Measurement Error

The difference between a measured value and the true value that can result from various inaccuracies or biases.

Reliable Measure

A method or instrument that consistently produces stable and accurate results over time.