K_a for HF Is 7

question 84

Multiple Choice

K_a for HF is 7.0 × 10^-4.K_b for the fluoride ion is ________.

• A)2.0 × 10^-8
• B)1.4 × 10^-11
• C)7.0 × 10^-18
• D)7.0 × 10^-4
• E)1.4 × 10³

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Definitions:

Marginal Cost

The cost associated with producing an additional unit of output, emphasizing the concept of incremental expense in production processes.

Average Cost

The total cost of production divided by the number of units produced, also called unit cost.

Fixed Cost

Costs that do not change with the level of output produced, such as rent, salaries, or loan payments.

Marginal Cost

Marginal Cost is the change in total cost that arises when the quantity produced is incremented by one unit; it is the cost of producing one more unit of a good.