APFIVE Gravimetric Analysis and Theoretical Yield
During a gravimetric analysis experiment to determine the concentration of sulfate ions in a sample, a student adds barium chloride (BaCl2) to precipitate barium sulfate (BaSO4). However, the mass of the precipitate is lower than expected. The student ensured that the solution was saturated with BaCl2. What was the conceptual mistake?
A
Neglected the solubility of BaSO4 in the solution
B
Overlooked potential contamination in the sample
C
Incorrectly calculated the stoichiometry of the reaction
D
Failed to account for the purity of BaCl2
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