Calculate the Percentage of Pyridine (C₅H₅N)that Forms Pyridinium Ion,C₅H₆N⁺,in a 0.72

question 60

Multiple Choice

Calculate the percentage of pyridine (C₅H₅N) that forms pyridinium ion,C₅H₆N⁺,in a 0.72 M aqueous solution of pyridine (K_b = 1.7 $\times$ 10^-9) .

• A)1.7 \(\times\) 10^-7 %
• B)3.5 \(\times\) 10^-3 %
• C)2.4 \(\times\) 10^-7 %
• D)6.7 \(\times\)10^-3 %
• E)4.9 \(\times\) 10^-3 %

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Definitions:

Control Group

In an experiment, a group of subjects that does not receive the experimental treatment and is used as a baseline to compare the effects of the treatment.

Lurking Variables

Variables that are not included as explanatory or dependent variables in a model but can affect the interpretation of the relationships being studied.

Fake Treatment

A placebo or sham treatment used in experimental research to test the efficacy of a real treatment.

Experiment

A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.