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11 Nov 2019
2. A student pipettes 25.00 ml of a solution containing an unknown amount of Cu into a 250.0 ml volumetric flask and dilutes the solution to the calibration mark using distilled water. 25.00 ml of the diluted solution is pipetted into an Erlenmeyer flask. After adding pH 6 buffer and indicator, the solution is titrated to the endpoint using 19.18 ml of 0.001007 M EDTA. What is the concentration of the dilute and undiluted unknown solutions in mol/L and mg/L? Cu dilute- mg/L rG.2t [Cu undiluted = M= mg/L
2. A student pipettes 25.00 ml of a solution containing an unknown amount of Cu into a 250.0 ml volumetric flask and dilutes the solution to the calibration mark using distilled water. 25.00 ml of the diluted solution is pipetted into an Erlenmeyer flask. After adding pH 6 buffer and indicator, the solution is titrated to the endpoint using 19.18 ml of 0.001007 M EDTA. What is the concentration of the dilute and undiluted unknown solutions in mol/L and mg/L? Cu dilute- mg/L rG.2t [Cu undiluted = M= mg/L
Jean KeelingLv2
19 Jul 2019