DATABASE H:\programs\unix\phreeqc\src\zhu\llnl.dat # R.16. Extra Credit Exercise SOLUTION 1 temp 25 pH 7 pe 4 redox pe units umol/kgw density 1 As(3) 1 As(5) 1 C(4) 1 C(-4) 1 Cr(6) 1 Cr(3) 1 Fe(2) 1 Fe(3) 1 N(0) 1 N(5) 1 N(-3) 1 O(0) 1 S(6) 1 S(-2) 1 U(4) 1 U(6) 1 V(5) 1 V(3) 1 -water 1 # kg