Surface area and this quantity are multiplied by fractional powers of n, scan rate, and the diffusion constant in a formula for CV peaks at 25 degrees Celsius. An initial drop in this quantity leads to excess perfluorocarbon emissions in the anode effect. A type of overpotential (-5[1])named for this quantity describes mass transport limitations. This quantity is squared (-5[1])in the summation formula for ionic strength, which serves as a measure of this quantity for electrolytes. (-5[1])60 millivolt fluctuations (-5[1])accompany periodic changes of this quantity in the Briggs-Rauscher reaction, a commonly studied chemical oscillator. A logarithm is performed on the (10[1])ratio of two values for this quantity in the Nernst (10[1])equation; (-5[1])that ratio (10[1])is the reaction quotient. For 10 points, name this chemical quantity measured in molarity. ■END■ (10[6])