In 1000 mM NaCl, 0 and for the reaction ()6 3 () + ()6 4 () have been measured, using a platinum electrode of area 9.00 mm2 as 1.00 10-4 m/s and 0.5 at 25 C.

(a) Calculate the exchange current density ( 0, A/cm2 ), when each hexacyanoiron ion has a concentration of 2.0 mM. The reaction is a single-step reaction involving a single electron. mM means millimolar or millimole/L.

₀ = 0 ( ) ⁽¹⁾ ( ) You can use this last equation for ₀ to solve the problem. Then, ₀ = ₀/.]