Homework Help: chemisry

Posted by Kelsey on Monday, August 16, 2010 at 7:09am.

A technician needs to determine the concentration of lead ions in a sample of water
a) Suggest a test chemical that can be added to the water sample to preciitate the lead ions. Show a chemical euation for the formation of the precipitate

b) after a precipitate forms, it is filtered and the mass of the dry precipitate is measured. This informationis used to determine the concentrationof lead. Comment on the accuracy of the test. Suggest and explain a potential source of error

Could you please tell me what will form the precipitate and how the equation would unfold.

Thanks

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