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1) The document describes an experiment to determine the concentration of an unknown FeCl3 solution (Solution B) through dilution and colorimetric analysis. 2) Five FeCl3 solutions were prepared through dilution of a 0.10 M stock solution to concentrations of 5.0x10-2, 1.0x10-2, 5.0x10-3, 1.0x10-3, and 5.0x10-4 M. 3) The concentrations were determined by observing the color change after addition of a potassium thiocyanate indicator solution. Solution B matched the color of the 5.0x10-3 M solution, indic

Author

Lau Yong Hui

Language

EN