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Perrier water has the following composition (millimole/liter, except for pH)):
Calcium (Ca2+ ) 3.725Magnesium (Mg2+ ) 0.288Sodium (Na+ ) 0.500Potassium (K+ ) 0.035Sulphate (SO42- ) 0.656Bicarbonate (HCO3- ) 6.885Chloride (Cl- ) 0.647Nitrate (NO3- ) 0.080pH 5.46
a. Are these analyses correct? (i.e. are the charges balanced?)
b. What partial pressure of CO2 would be at equilibrium with this water?
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