What Will Be the Effect of Adding 0

question 31

Multiple Choice

What will be the effect of adding 0.5 mL of 0.1 M HCl to 100 mL of a phosphate buffer in which [H₂PO₄⁻] = [HPO₄²⁻] = 0.35 M?

• A)The pH will increase slightly.
• B)The pH will increase significantly.
• C)The pH will decrease slightly.
• D)The pH will decrease significantly.
• E)Since it is a buffer solution, the pH will not be affected.

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Definitions:

Mixed Numbers

Numbers consisting of an integer and a proper fraction, representing a value between two whole numbers.

Lowest Terms

A fraction that cannot be reduced by any common divisor.

Fractions

Number expressions of one or more equal parts of whole units.

Improper Fractions

Improper fractions are fractions where the numerator (the top number) is greater than or equal to the denominator (the bottom number), representing a value equal to or greater than one.