Asked by Carlye
A 100-mL sample of water is titrated with EDTA solutions in problem 2. The same amount of Mg2+ is added as previously, and the volume of EDTA required is 31.84mL.
What volume of EDTA is used in titrating the Ca2+ in hard water?
Previous answers are:
Moles of Ca2+ : 0.005113
Molarity of Ca2+ in 250mL solution: 0.02045M
Moles of Ca2+ are in 25.00-mL aliquot of solution in 1b : 0.0005113 moles
A blank containing a small measured amount of Mg2+requires 3.21 mL of EDTA to reach the end point. An aliquot to which the same amount of mh2+ is added requires 24.95 mL of the EDTA to reach end point.
Milliliters of EDTA are needed to titrate the Ca2+ ion in aliquot - 21.74 mL
Moles of EDTA in the volume 0.00015113
Molarity of the EDTA solution : 0.02351 M
What volume of EDTA is used in titrating the Ca2+ in hard water?
Previous answers are:
Moles of Ca2+ : 0.005113
Molarity of Ca2+ in 250mL solution: 0.02045M
Moles of Ca2+ are in 25.00-mL aliquot of solution in 1b : 0.0005113 moles
A blank containing a small measured amount of Mg2+requires 3.21 mL of EDTA to reach the end point. An aliquot to which the same amount of mh2+ is added requires 24.95 mL of the EDTA to reach end point.
Milliliters of EDTA are needed to titrate the Ca2+ ion in aliquot - 21.74 mL
Moles of EDTA in the volume 0.00015113
Molarity of the EDTA solution : 0.02351 M
Answers
Answered by
demena
2345
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