a. How much Fe(II) remains after 30 s of oxidation with permanganate? The initial concentration of permanganate and Fe(II) are 1.5 times the stoichiometric requirement and 1 mg/L, respectively. Assume that the secondorder rate constant is 105m1 s1. Hint: Need to use equation: dCFe/dt = -kCFe CMn = kCFe [CMn,o (1/3)(CFe,o Cfe)]

Need to use partial fraction decomposition for integration: 1/(x(x+1)dx = (1/x-1/x+1)dx = 1/x dx - 1/x+1 dx