Posted by Ken on Wednesday, November 30, 2011 at 5:10pm.
You want to use about 40 mL of the titrant which is 1 mg/mL. That means
1 mg/mL x 40 mL = about 40 mg sample.
To get 40 mg of the sample, which is 600 mg/L (600 mg/1000 mL = 0.600 mg/mL) means
0.600 mg/mL x ?mL = 40 mg and solve for mL. I get about 66.7 mL. That isn't conveniently measured so I would take a 50 mL aliquot. Work that through to make sure you use between 10 and 50 mL but I think that will be 30 mL of the titrant. Check that out.
2. Yes, EDTA can be used to analyze other cations so I don't understand the if not, why part.
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