Which ions comprise about 85% of the solutes in seawater?

Question

Quizplus · Accepted Answer

Sodium and chloride ions comprise about 85% of the solutes in seawater. Magnesium and sulfate ions are abundant but not as much as sodium and chloride. Calcium and carbonate ions are only about 4% of total solutes in seawater, while potassium and chloride ions are present in lower concentrations than sodium and chloride. Calcium and sulfate ions are also present in lower concentrations than sodium and chloride.

Which Ions Comprise About 85% of the Solutes in Seawater