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An aqueous magnesium chloride solution is made by dissolving 7.15 moles of MgCl2 in sufficient water so that the final volume of the solution is 2.50 L . Calculate the molarity of the MgCl2 solution.

Respuesta :

quasarJose

Answer:

2.86mol/L

Explanation:

Given parameters:

Number of moles of MgCl₂  = 7.15moles

Volume of solution  = 2.50L

Unknown:

Molarity of the MgClâ‚‚ solution = ?

Solution:

The molarity of a solution is the number of moles of solute found in a given volume.

  Molarity  = [tex]\frac{number of moles }{volume}[/tex]  

 Insert the parameters and solve;

   Molarity  = [tex]\frac{7.15}{2.5}[/tex]   = 2.86mol/L