Arsenic Ionization Energy

The Arsenic Ionization Energy is the energy required to remove from atom one mole of electrons with subsequent production of positively charged ion of Arsenic.
As -> As⁺ + e^-
This process can be repeated many times, but the energy cost is increased dramatically. The general equation for the Arsenic is:
As^N+ -> As^(N+1)+ + e^-

As -> As¹⁺ = 947 kJ/mol = 226.56 Kcal/mol
As¹⁺ -> As²⁺ = 1798 kJ/mol = 430.14 Kcal/mol
As²⁺ -> As³⁺ = 2735 kJ/mol = 654.31 Kcal/mol
As³⁺ -> As⁴⁺ = 4837 kJ/mol = 1157.18 Kcal/mol
As⁴⁺ -> As⁵⁺ = 6042 kJ/mol = 1445.45 Kcal/mol
As⁵⁺ -> As⁶⁺ = 12305 kJ/mol = 2943.78 Kcal/mol
As⁶⁺ -> As⁷⁺ = 15400 kJ/mol = 3684.21 Kcal/mol
As⁷⁺ -> As⁸⁺ = 18900 kJ/mol = 4521.53 Kcal/mol
As⁸⁺ -> As⁹⁺ = 22600 kJ/mol = 5406.70 Kcal/mol
As⁹⁺ -> As¹⁰⁺ = 26400 kJ/mol = 6315.79 Kcal/mol