If the PKa of HCHO₂ Is 3

question 38

Multiple Choice

If the pKa of HCHO₂ is 3.74 and the pH of an HCHO₂/NaCHO₂ solution is 3.74,which of the following is TRUE?

• A) [HCHO₂] > [NaCHO₂]
• B) [HCHO₂] = [NaCHO₂]
• C) [HCHO₂] < [NaCHO₂]
• D) [HCHO₂] < <[NaCHO₂]
• E) It is not possible to make a buffer of this pH from HCHO₂ and NaCHO₂.

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Definitions:

Null Hypothesis

A statement in statistical analysis that assumes no significant difference or effect exists between certain datasets or treatments.

Catalysts

Substances that increase the rate of a chemical reaction without being consumed in the reaction, thereby facilitating the process without undergoing permanent chemical changes themselves.

Reaction Times

The amount of time it takes to respond to a stimulus. This can vary based on a wide range of factors, including attention and fatigue.

Null Hypothesis

A statement positing that there is no significant difference or effect, serving as the default assumption in statistical testing.