A copper storage tank containing dilute H2SO4 at pH = 3 is blanketed with hydrogen at 1 atm. Calculate the maximum Cu contamination of the acid in moles Cu" per liter. What is the corresponding contamination if the hydrogen partial pressure is reduced to 10 atm?

The generic metal A forms an insoluble salt AB(s) and a complex AC5(aq). The equilibrium concentrations in a solution of AC5 were found to be [A]=0.100 M, [C]=0.0340 M, and [AC5]=0.100 M. Determine the formation constant, Kf, of AC5. The solubility of AB(s) in a 1.000 M solution of C(aq) is found to be 0.1580.158 M. What is the Ksp of AB?

In water, Na AsO dissociates into Nat and AsO ³. AsO ³ is a polybasic ion and ionizes in water. If 40.00 g of Na AsO is dissolved in 10.00 L of water, what is the pH of the resulting solution? For AsO ³ Kb1 = 3.3 x 103, Kb2 = 9.1 x 108 and Kb3 = 1.7 x 10-¹². 4

2. An effluent waste stream contains 3300mg/L organic matter ((CH2O) suspended and dissolved) and 27mg / L ammonium ion NH4+ (as N). Write chemical equations for the complete oxidation of (CH2O) and NH4+ and calculate the total BOD of this effluent in mg/L O2