Answer :
The molar concentration of Cl- when 0.20 mol of ZnCl₂ are dissolved in enough water to prepare 3.0 l of solution is 0.13 M
What is it Chloride ion What is it?
The chloride ion is the anion Cl. It is created when a molecule, such as hydrogen chloride, dissolves in water or other polar solvents, or when the element chlorine gets an electron. Sodium chloride and other chloride salts are usually highly soluble in water.
It is an electrolyte that is present in all biological fluids and is in charge of regulating the flow of liquid into and out of cells, conveying nerve impulses, and keeping the acid/base balance.
Less frequently, the "common" name of a chemical compound with one or more chlorine atoms covalently bound may contain the term chloride.
Given the molecular formula, we have two chlorine atoms for every mole of ZnCl₂
0.2 mol ZnCl₂ x 2 mole Cl⁻/ 1 mole ZnCl₂ = 0.4 mol Cl⁻
Now we will divide this by the volume of the solution as liters
Concentration = 0.4 mol Cl⁻ / 3 L = 0.13 M
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