H2O + 25.0 mM   H2SO4
+ 500.0 mM   Na2SO4

pH = 2.21

  (at 25 °C)
Electrical conductivity:   54716.7 µS/cm   (info)
Ionic strength:   1106.496 mmol/L   (info)
Alkalinity:   -50.0 meq/L   (info)
Total hardness:   0.0 meq/L   (info)
Carbonate hardness:   0.0 meq/L   (info)
Redox potential (Eh):   931 mV  



Elements   (in mM)

Na Na 1.00e+03
S S 5.25e+02
S(6) Sulfate 5.25e+02
O(0) O(0) 7.85e-12

Aqueous Species   (in mM)

H+ 8.32e+00
OH- 2.78e-09
NaOH 1.64e-10
Na+ 8.07e+02
NaSO4- 1.93e+02
HSO4- 4.17e+01
SO4-2 2.91e+02
O2 3.92e-12

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Thenardite Na2SO4 -1.48 under-saturated
Mirabilite Na2SO4:10H2O -0.78 under-saturated
Sulfur S -77.64 under-saturated
NaMetal Na -61.83 under-saturated

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