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11 Nov 2019
2. A student prepared this solution by mixing the following solutions 4.00 ml of 0.00250 M Fe(NOs) 3.00 mL of 0.00250 M KSCN 3.00 mL of 0.050 M HNO From a plot of absorbance versus concentration of [Fe(SCN)], the equilibrium concentration of [Fe(SCN)] was determined to be 2.8 x 10" M Calculate the initial concentration of SCN before the system proceeds to equilibrium. O 1.20 x 10-3 M O 1.00 x 103 O 4.32 x 10A-4 o 7.50Ã10^-4 O 7.00 x 10A-4 M
2. A student prepared this solution by mixing the following solutions 4.00 ml of 0.00250 M Fe(NOs) 3.00 mL of 0.00250 M KSCN 3.00 mL of 0.050 M HNO From a plot of absorbance versus concentration of [Fe(SCN)], the equilibrium concentration of [Fe(SCN)] was determined to be 2.8 x 10" M Calculate the initial concentration of SCN before the system proceeds to equilibrium. O 1.20 x 10-3 M O 1.00 x 103 O 4.32 x 10A-4 o 7.50Ã10^-4 O 7.00 x 10A-4 M
Keith LeannonLv2
11 Nov 2019