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11 Nov 2019
7. Plot mV vs. log[CI] to generate a chloride ion-selective electrode calibration curve. 8. Use the equation of the line from your calibration curve to calculate the chloride concentration in your unknown sample. Questions 1. Calculate the molarity of a standard Ag solution made by adding 0.8416 g of exactly 500.0 mL AgNO, to 2. 0.2500 g of a soluble chloride sample was dissolved in exactly 250.0 mL. It took exactly 40.00 mL of 0.01000 M Ag' to titrate a 25.00 mL. aliquot of the sample solution. Calculate the % cr in the sample. 3. 3100 mL of a river water sample took 9.30 mL of 0.01005 M Ag' to titrate. Calculate the concentration of CI in ppm (ug/mL or mg/L) for the river water 4. Use the following date obtained with Ag/SCE electrodes for direct CI measurement to prepare a graph plot of mV vs. log CI concentration in ppm of standards. Use the graph equation for the straight line to determine the ppm cr in the River water sample and % CI, in the unknown cr sample. m V reading 110 Data 1000 ppm Cl 100 ppm Cl 150 190 160 10 ppm C River water sample CT unknown (0.250 g sample in 100 mL)120 5. Calculate the electrode potential for a silver filled electrode in a solution of 0.00SS0 M AgNO, solution
7. Plot mV vs. log[CI] to generate a chloride ion-selective electrode calibration curve. 8. Use the equation of the line from your calibration curve to calculate the chloride concentration in your unknown sample. Questions 1. Calculate the molarity of a standard Ag solution made by adding 0.8416 g of exactly 500.0 mL AgNO, to 2. 0.2500 g of a soluble chloride sample was dissolved in exactly 250.0 mL. It took exactly 40.00 mL of 0.01000 M Ag' to titrate a 25.00 mL. aliquot of the sample solution. Calculate the % cr in the sample. 3. 3100 mL of a river water sample took 9.30 mL of 0.01005 M Ag' to titrate. Calculate the concentration of CI in ppm (ug/mL or mg/L) for the river water 4. Use the following date obtained with Ag/SCE electrodes for direct CI measurement to prepare a graph plot of mV vs. log CI concentration in ppm of standards. Use the graph equation for the straight line to determine the ppm cr in the River water sample and % CI, in the unknown cr sample. m V reading 110 Data 1000 ppm Cl 100 ppm Cl 150 190 160 10 ppm C River water sample CT unknown (0.250 g sample in 100 mL)120 5. Calculate the electrode potential for a silver filled electrode in a solution of 0.00SS0 M AgNO, solution
Jamar FerryLv2
22 Mar 2019