Consider the Buffer Pair, NH₄Cl/NH₃

question 80

Multiple Choice

Consider the buffer pair, NH₄Cl/NH₃. What can be stated about the relative proportions of this buffer pair if the pH of an aqueous solution of this pair is adjusted to 12.00 and the p K _a for NH₄⁺ equals 9.25?

• A) This buffer solution contains relatively more NH₄⁺ than NH₃.
• B) This buffer solution contains relatively more NH₃ than NH₄⁺.
• C) This buffer solution contains equal concentrations of NH₄⁺ and NH₃.
• D) More information is needed to determine the relative proportion of each member.

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Definitions:

Onlooker Play

A stage of play where a child watches others play but does not engage directly, serving as a form of learning social cues and interactions.

Formal Play

Structured play activities that are governed by rules and often involve goals or objectives, contrasting with spontaneous or free play.

Associative Play

A stage of play primarily observed in young children, where they play in parallel to each other but engage in group activities, sharing and talking.

Prosocial Behavior

Behaviors that are intended to benefit others, including acts of kindness, helping, and generosity.