Which of the Following Solutions Represents a Good Buffer System

question 81

Multiple Choice

Which of the following solutions represents a good buffer system?

• A)a solution that is 0.10 mol L^-1 CH₃COOH and 0.10 mol L^-1 CH₃COOLi
• B)a solution that is 0.10 mol L^-1 HF and 0.10 mol L^-1 CH₃COONa
• C)a solution that is 0.10 mol L^-1 HCl and 0.10 mol L^-1 NH₄⁺
• D)a solution that is 0.10 mol L^-1 NaOH and 0.10 mol L^-1 KOH
• E)a solution that is 0.10 mol L^-1 HCl and 0.10 mol L^-1 KCl

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Definitions:

Conservation

Understanding that physical properties do not change when appearance changes, crucial in cognitive development, repeating definition with emphasis on its role in cognitive science.

Preoperational Stage

A phase in Jean Piaget's cognitive development theory where children from ages 2 to 7 engage in symbolic play and struggle with logic and taking the perspective of others.

Three Mountains Task

A cognitive development test designed by Jean Piaget to assess children's ability to understand and appreciate different perspectives and viewpoints.

Formal-Operational Thought

The final stage in Piaget's theory of cognitive development, characterized by the ability to think abstractly and logically.