The concentration of sulfate ion in a solution is measured by precipitating the sulfate as BaSO4, fi — Laboratory Chemistry Chemistry Question
Question
The concentration of sulfate ion in a solution is measured by precipitating the sulfate as BaSO4, filtering the precipitate on ashless filter paper, and heating the filter paper and precipitate in a tared crucible with a Bunsen burner. Which error will result in a sulfate concentration that is higher than the actual concentration?
A.
The empty crucible contains a few drops of water when it is tared.
B.✓ Correct
A glass fiber filter is used instead of ashless filter paper.
C.
Some fine precipitate is not captured by the filter.
D.
Some of the sulfate-containing solution spills before the BaCl2 solution is added.
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