Which Pair of Substances Could Form a Buffered Aqueous Solution

question 13

Multiple Choice

Which pair of substances could form a buffered aqueous solution?

• A) HCl, NaCl
• B) HNO₃, NaNO₃
• C) H₃PO₄, NaH₂PO₄
• D) H₂SO₄, CH₃COOH
• E) NH₃, NaOH

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Definitions:

Reciprocal

The multiplicative inverse of a number or expression; for any nonzero number x, its reciprocal is 1/x.

Number

A mathematical object used to count, measure, and label.

Extraneous Solutions

Solutions obtained in the process of solving an equation that do not satisfy the original equation.

Equation

An expression asserting the equality of two quantities, often containing one or more variables.