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:

Initial Cost

The initial expenditure needed to acquire an asset or initiate a project, encompassing purchase price and any other costs necessary to get the asset ready for use.

Straight-Line Depreciation

A method of depreciating an asset where its cost is reduced equally over its useful life.

Net Present Value

A method used in capital budgeting to evaluate the profitability of an investment, by calculating the difference between its present value of cash inflows and investment cost.