Which Combination of Solutions Is the Best Choice for Making

question 16

Multiple Choice

Which combination of solutions is the best choice for making a buffer solution?

• A)equal volumes of 1 M ammonia (NH₃) and 0.001 M ammonium chloride (NH₄Cl)
• B)equal volumes of 0.5 M hydrochloric acid (HCl) and 0.5 M sodium hydroxide (NaOH)
• C)equal volumes of 0.5 M hydrochloric acid (HCl) and 0.5 M sodium chloride (NaCl)
• D)equal volumes of 2 M ammonia (NH₃) and 1 M hydrochloric acid (HCl)
• E)equal volumes of 2 M ammonium chloride (NH₄Cl) and 1 M hydrochloric acid (HCl)

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Definitions:

Simple Random Sampling

A sampling technique where each member of the population has an equal chance of being selected to be part of the sample.

Political Analysts

Professionals who study and interpret political systems, activities, and trends.

General Population

The entire group or set of individuals that researchers are interested in and to which they aim to generalize their findings.

Random Samples

Random samples are selections made in such a way that each member of a population has an equal chance of being included.