A Compound Has a PK_a of 7

question 18

Multiple Choice

A compound has a pK_a of 7.4. To 100 mL of a 1.0 M solution of this compound at pH 8.0 is added 30 mL of 1.0 M hydrochloric acid. The resulting solution is pH:

• A) 6.5.
• B) 6.8.
• C) 7.2.
• D) 7.4.
• E) 7.5.

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Definitions:

Theta

A term from options trading that describes the rate of change in an option's price with respect to the passage of time.

Elasticity

A measure of how much the demand or supply of a product changes in response to changes in price or other economic factors.

Dividend Payout

The portion of a company's earnings that is distributed to shareholders in the form of dividends, usually expressed as a percentage of the earnings.

Lower Volatility

Refers to the characteristic of an asset or portfolio to experience less fluctuation in price over time.