Which Statement Is FALSE Regarding the Titration of a Weak

question 20

Multiple Choice

Which statement is FALSE regarding the titration of a weak acid with a strong base? HA + OH⁻ → A⁻ + H₂O

• A)At the equivalence point,the pH is due to the hydrolysis of water by the conjugate base,A⁻.
• B)Past the equivalence point the pH is due to excess conjugate base,A⁻.
• C)Before strong base is added,the pH is due to the ionization of the weak acid,HA.
• D)Before the equivalence point,the pH is due to a mixture of HA and A⁻.
• E)The pH at the equivalence point is basic.

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Definitions:

Endodermal

Pertaining to the innermost layer of the three primary germ layers in the very early embryo, which gives rise to the digestive and respiratory systems among others.

Ectodermal

Pertaining to the ectoderm, the outermost layer of the embryo, giving rise to the nervous system, skin, and various sensory organs.

Germ Layers

The three primary layers of cells (ectoderm, mesoderm, and endoderm) in the early embryo from which all tissues and organs develop.

Ectoderm

The outermost layer of cells or tissue of an embryo in early development, giving rise to the skin and nervous system.