Use the Following Acid Ionization Constants to Identify the Correct $\mathrm { HF } \quad K _ { \mathrm { a } } = 7.2 \times 10 ^ { - 4 }$

question 15

Multiple Choice

Use the following acid ionization constants to identify the correct decreasing order of base strengths for the conjugate bases. $\mathrm { HF } \quad K _ { \mathrm { a } } = 7.2 \times 10 ^ { - 4 }$
$\mathrm { HNO } _ { 2 } \quad K _ { \mathrm { a } } = 4.5 \times 10 ^ { - 4 }$
$\mathrm { HCN } \quad K _ { \mathrm { a } } = 6.2 \times 10 ^ { - 10 }$

• A) CN^- > NO₂^- > F^-
• B) NO₂^- > F^- > CN^-
• C) F^- > CN^- > NO₂^-
• D) F^- > NO₂^- > CN^-
• E) NO₂^- > CN^- > F^-

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Definitions:

Wins to Losses

A ratio comparing the number of wins to the number of losses, often used in sports or other competitive situations to measure performance.

Maintain Ratio

The requirement to keep a consistent ratio, often used in the context of financial ratios by firms to ensure stability or compliance with regulations.

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The process of determining the value of the variable X that satisfies a given equation.

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A proportion is a mathematical relationship showing that two ratios or fractions are equal.