nojha1
Dec 3, 2009, 02:52 PM
Please help me with this part of problem/
Pb2+(aq) + EDTA2-(aq) -> PbEDTA(aq)
A 10.00 mL sample of the water from the holding tank requires 35.47 mL of 8.193 x 10-4 M EDTA to reach the end point.
(A) What will be the molar concentration of lead(II) ions if you added a 10% excess of the stoichiometric amount of potassium carbonate? (B) Is this enough potassium carbonate to “get the lead out” to meet the EPA limit? (E) Which principle is being applied to remove the lead(II) ions from solution?
Pb2+(aq) + EDTA2-(aq) -> PbEDTA(aq)
A 10.00 mL sample of the water from the holding tank requires 35.47 mL of 8.193 x 10-4 M EDTA to reach the end point.
(A) What will be the molar concentration of lead(II) ions if you added a 10% excess of the stoichiometric amount of potassium carbonate? (B) Is this enough potassium carbonate to “get the lead out” to meet the EPA limit? (E) Which principle is being applied to remove the lead(II) ions from solution?