Consider a Solution of 2

question 173

Multiple Choice

Consider a solution of 2.0 M HCN and 1.0 M NaCN (K_a for HCN = 6.2 × 10^-10) . Which of the following statements is true?

• A) The solution is not a buffer because [HCN] is not equal to [CN^-].
• B) [OH^-] > [H⁺]
• C) The pH will be below 7.00 because the concentration of the acid is greater than that of the base.
• D) The buffer will be more resistant to pH changes from addition of strong acid than to pH changes from addition of strong base.
• E) All of these statements are false.

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Definitions:

Excessive Drinking

The consumption of alcoholic beverages in quantities greater than what is considered moderate or safe.

Parents' Beliefs

The convictions or principles held by parents, often influencing their parenting style and the values they instill in their children.

Self-Talk

The internal dialogue that goes on within one’s mind, which can be either positive or negative and influence behavior and emotions.

Low Self-Esteem

A negative view of oneself, characterized by a lack of confidence and feeling of inadequacy.