H2O + 1.0 mM   CO2

pH = 4.68

    (at 25 °C)
Electrical conductivity:   8.2  µS/cm   (info)
Ionic strength:   0.021  mmol/L   (info)
Alkalinity:   0.0  meq/L   (info)
Total hardness:   0.0  meq/L   (info)
Carbonate hardness:   0.0  meq/L   (info)
Redox potential (Eh):   779  mV  

Elements   (in mM)
C(4) DIC 1.00e+00
O(0) O(0) 4.22e-12
Aqueous Species   (in mM)
H+ 2.10e-02
OH- 4.82e-07
CO2 9.79e-01
HCO3- 2.10e-02
CO3-2 4.79e-08
O2 2.11e-12

Disclaimer:   The pH calculator has been tested with great care. Nevertheless, the results are provided without warranty.