2. How many grams of Cu(C2H302)2 · H20 (FW = 199.65 g/mol) are needed to prepare 500.0 mL of %3D a 0.250 M solution? 3. A stock solution of Cu(C2H302)2 has a concentration of 0.270 M. If 6.00 mL of this solution is transferred to a 50.00 mL flask and then diluted with distilled water, what is the final concentration of Cu2+ ion? 4. Using the calibration curve below, what is the concentration of a Cu2+ solution which had an absorbance of 0.450? Absorbance as a Function of Concentration of Cu+ 0.800 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.000 0.000 0.100 0.200 0.300 0.400 0.500 0.600 0.700 0.800 [Cu?*] Absorbance
2. How many grams of Cu(C2H302)2 · H20 (FW = 199.65 g/mol) are needed to prepare 500.0 mL of %3D a 0.250 M solution? 3. A stock solution of Cu(C2H302)2 has a concentration of 0.270 M. If 6.00 mL of this solution is transferred to a 50.00 mL flask and then diluted with distilled water, what is the final concentration of Cu2+ ion? 4. Using the calibration curve below, what is the concentration of a Cu2+ solution which had an absorbance of 0.450? Absorbance as a Function of Concentration of Cu+ 0.800 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.000 0.000 0.100 0.200 0.300 0.400 0.500 0.600 0.700 0.800 [Cu?*] Absorbance
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter3: Composition Of Substances And Solutions
Section: Chapter Questions
Problem 56E: Calculate the molarity of each of the following solutions: (a) 293 g HCl in 666 mL of solution, a...
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