very nice explanation but just one correction: at time 4.33 both are having same scan rate as the graph is plotted against time and at the end of cyclic both are reaching there at same time position. So to show that one has higher scan rate, i believe the breadth of these plots have to be adjusted. Like if bottom have higher scan rate then it will make more cycles then upper one at the end... But other than that video is well explained
Please any one help me in solutions this problem One gram of zinc metal dissolved in a solution of hydrochloric acid with a concentration of 6 molars, dilute it to 250 ml. Take 25 ml of it into a polarography cell, and the polarogram shows a voltage wave at -0.65 volts (assigned to Cd impurities), a diffusion current equal to 32 milliamps. If we add to the cell containing the zinc solution 5 ml of Cadmium chloride concentration is 0.0005 molar, and when taking a second crystalogram, the diffusion current was 77.5 milliamps. Calculate the weight percentage of cadmium impurities in zinc metal.
this is the best video i have ever seen on introductory CV
Great work bro continue this
Very good and thorough explanation!
Well explained
fantastic! 💝
superb explanation
good lecture
Great work. Continue the lectures with some periodicity. Redirected here from Facebook post. Thanks
Thanks for your comment.. This series will be continuing..
very nice explanation but just one correction: at time 4.33 both are having same scan rate as the graph is plotted against time and at the end of cyclic both are reaching there at same time position. So to show that one has higher scan rate, i believe the breadth of these plots have to be adjusted. Like if bottom have higher scan rate then it will make more cycles then upper one at the end... But other than that video is well explained
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Please any one help me in solutions this problem
One gram of zinc metal dissolved in a solution of hydrochloric acid with a concentration of 6 molars, dilute it to 250 ml. Take 25 ml of it into a polarography cell, and the polarogram shows a voltage wave at -0.65 volts (assigned to Cd impurities), a diffusion current equal to 32 milliamps. If we add to the cell containing the zinc solution 5 ml of Cadmium chloride concentration is 0.0005 molar, and when taking a second crystalogram, the diffusion current was 77.5 milliamps. Calculate the weight percentage of cadmium impurities in zinc metal.