A 42 Farad Supercapacitor

In my 42 Farad Supercapacitor video you see I get 17 farads on this supercapacitor with 0.20 grams of active material on each electrode (42F/gram). For the calculation I use: http://mustcalculate.com/electronics/capacitorchargeanddischarge.php?vfrom=1.70&vto=0.85&vs=0&r=25&time=298

For symmetric Supercapacitor:

"Typically, specific capacitance is used to characterize the performance of electrode material and is normalized to the mass of single electrode."
If I put this into the note,.... then I get 85 Farads per 1 gram.

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