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Chloride, (Cl-), 19,345 ppm (weight)

Sodium (Na+) 10,752 ppm (weight)

Sulfate (SO42-) 2,701 ppm (weight)

Magnesium (Mg2+) 1,295 ppm (weight)

Calcium (Ca2+) 416 ppm (weight)

Potassium (K+) 390 ppm (weight)

Notes indicate that there is a self-ionization of water into H+, H3O+, and OH- at a concentration of about 1.0x10-7 mol/L

There are also notes of a significant amount of dissolved Oxygen (O2) in seawater. One would consider it as a stable covalently bonded molecule, but having unshared electrons, I can't rule out it participating with ion formation.

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13y ago
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11y ago

Ca2+, Mg2+, Na+, NH4+, H+, K+, SO42-, Cl-, NO3-, HCO3-. These are the most common ions dissolved in fresh water.

Source: University of Waterloo, Ontario, Canada

http://www.science.uwaterloo.ca/~cchieh/cact/applychem/waternatural.html

Access: Feb 2013

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11y ago

Alkali metal ions and ammonium ions are generally very soluble in water.

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Q: What ions are most abundant in water?
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