Equal Volumes of the Following Pairs of Solutions Are Mixed

question 73

Multiple Choice

Equal volumes of the following pairs of solutions are mixed. Which pair will produce a buffer solution?

• A) 0.10 mol L^-1 HCl and 0.05 mol L^-1 NaOH
• B) 0.10 mol L^-1 HCl and 0.15 mol L^-1 NH₃
• C) 0.10 mol L^-1 HCl and 0.05 mol L^-1 NH₃
• D) 0.10 mol L^-1 HCl and 0.20 mol L^-1 CH₃COOH
• E) 0.10 mol L^-1 HCl and 0.20 mol L^-1 NaCl

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The act of wagering money or something of value on an event with an uncertain outcome, often with the primary intent of winning additional money or goods.

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Individuals who tend to maintain a positive outlook on life and anticipate favorable outcomes.

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Repeated instances of failure or defeat, often leading to negative psychological effects like decreased motivation or self-esteem.

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