Wednesday
October 22, 2014

Posts by saddee


Total # Posts: 6

chemistry
A 100.0 mL sample of hard water is titrated with the EDTA solution from Part 2. The same amount of Mg2+ is added as previously, and the volume of EDTA required is 22.44 mL What volume of EDTA is used in titrating the Ca2+ in the hard water? How many moles of EDTA are there in ...
April 28, 2009

chemistry
25.00 mL aliquots of the solution from Part 1 are titrated with EDTA to the Eriochrome Black T end point. A blank containing a small measured amount of Mg2+ requires 2.60 mL of the EDTA to reach the end point. An aliquot to which the same amount of Mg2+ is added requires 28.55...
April 28, 2009

chemistry
A 0.5215 gram sample of CaCO3 is dissolved in 12M HCl and the resulting solution is diluted to 250.0 mL in a volumetric flask. How many moles of CaCO3 are used? What is the molarity of the Ca2+ in the 250 mL of solution? How many moles of Ca2+ ae in a 25.0 mL aliquot of the ...
April 28, 2009

chemistry
A 0.5215 gram sample of CaCO3 is dissolved in 12M HCl and the resulting solution is diluted to 250.0 mL in a volumetric flask. How many moles of CaCO3 are used?
April 28, 2009

chemistry
A sample of fresh grapefruit juice was filtered and titrated with the I2 solution prepared in Part 2. A 100.0 mL sample of the juice took 9.85 mL of the iodine solution to reach the starch end point. What is the concentration of Vitamin C in 100ml juice? What quantity of juice...
April 28, 2009

chemistry
What is the titer of the iodine solution of the .1000g sample of pure ascorbic acid 25.32 ml I2
April 28, 2009

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