When [ ] are around an ion, what does it represent? it is an aqueous solution. the concentration of the ion is in moles/liter. the ion is reacting.

The concentration of the ion is in moles/liter.

Explanation: The concentration of any substance is represented bu putting the symbol of that substance inside a square bracket and the concentration represents the molarity of that solution.

Concentration of is written as

Molarity : It is defined as the number of moles of solute present in one liter of solution.

Formula used :

where,

n = moles of solute

= volume of solution in L

If a solution is aqueous, it is written by writing (aq) after the chemical formula of the substance.

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