hamad,Popular 365 Question

Suppose we carry out the precipitation of
described in Example 4-11. If we obtain 2.058 g of preAg2CrO4(s)
cipitate, we might conclude that it is nearly pure
but if we obtain 2.112 g, we can be quite
sure that the precipitate is not pure. Explain this
difference.

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3 months ago 1

Answers

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  1. hcbiochem

    Without knowing the details of the problem, I would guess (and this is just a guess) that if you calculate the theoretical yield of Ag2CrO4(s), you would come up with 2.058 g, or something close to that. So, if you actually isolated 2.112 g (more than the theoretical yield), you have to conclude that the precipitate is not pure. That make sense?

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