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This gives the SCE a potential of +0.248 V vs. SHE at 20 °C and +0.244 V vs. SHE at 25 °C, [1] but slightly higher when the chloride solution is less than saturated. For example, a 3.5M KCl electrolyte solution has an increased reference potential of +0.250 V vs. SHE at 25°C while a 1 M solution has a +0.283 V potential at the same temperature.
While the SHE might seem to be a reasonable reference for nonaqueous work as it turns out the platinum is rapidly poisoned by many solvents including acetonitrile [3] causing uncontrolled drifts in potential. Both the SCE and saturated Ag/AgCl are aqueous electrodes based around saturated aqueous solution.
During the early development of electrochemistry, researchers used the normal hydrogen electrode as their standard for zero potential. This was convenient because it could actually be constructed by "[immersing] a platinum electrode into a solution of 1 N strong acid and [bubbling] hydrogen gas through the solution at about 1 atm pressure".
The city appealed and, on Dec. 17, 1956, the U.S. Supreme Court rejected the appeal to hear Browder vs. Gayle, citing the already established precedent of Flemming vs. SCE&G.
Growing up, my dad would keep pre-shredded mozzarella cheese in the fridge for pizza-making on Friday night. Some of my earliest memories of cooking were making pizza this way: rolling out dough ...
Eggs are a kitchen workhorse: They can be used as a binder or leavening agent while adding rich texture and flavor to many recipes. But what do you do if you’re cooking for someone who doesn’t ...
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She Loves to Cook, and She Loves to Eat (Japanese: 作りたい女と食べたい女, Hepburn: Tsukuritai Onna to Tabetai Onna) is a Japanese web manga series written and illustrated by Sakaomi Yuzaki. It has been serialized on Kadokawa Shoten's digital manga manga magazine Comic It since January 2021.