Pure water is actually a mixture of water molecules,hydronium ions,and hydroxide ions: A.How does the concentration of hydroxide ions compare to the concentration of hydronium ions in pure water?Explain B.How does the concentration of ions compare to the concentration of molecules in pure water?
Chemistry · High School · Wed Jan 13 2021
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A. In pure water, the concentration of hydroxide ions (OH-) is equal to the concentration of hydronium ions (H3O+). This equilibrium is a result of the autoprotolysis of water molecules.
B. The concentration of ions (hydronium and hydroxide ions) is very small compared to the concentration of water molecules in pure water. The majority of molecules in pure water are H2O molecules, and the ion concentrations are typically on the order of 10^-7 to 10^-14 moles per liter.