Consider a Reaction That Produces a Significant Amount of Hydrogen

question 70

Multiple Choice

Consider a reaction that produces a significant amount of hydrogen ion and is to be carried out a pH 7. Only two acids are available for making the buffer solution. The pK_a values for acids A and B are 6.3 and 7.3, respectively. Which acid would serve as the optimum buffer for this reaction? Or would carrying out the reaction in water simply serve as well?

• A) acid A
• B) acid B
• C) water
• D) both acids would be equally effective

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Definitions:

Margin of Error

The amount of error allowed in the results of a survey, often expressed as a percentage.

Random Sample

A subset of individuals chosen from a larger set, where each individual has an equal chance of being selected.

Large-Sample Z

A statistical test used to infer that the means of two populations are equal when the sample size is large and the population variance is known.

Major Defects

Significant problems or imperfections observed in products or process outputs that typically require correction or significantly affect usability.