The end point of some precipitation titrations for mixtures can be up to 3% high.The error is attributed to:
A)ion pairs.
B)coprecipitation.
C)turbidity.
D)solubility of the precipitates.
E)redox chemistry.

Question

Quizplus · Accepted Answer

Coprecipitation occurs when some impurities are incorporated into the precipitate. This can lead to an overestimation of the amount of analyte in the sample, resulting in the endpoint being up to 3% high.

The End Point of Some Precipitation Titrations for Mixtures Can