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What is the molarity of a solution prepared by placing 154.2 g of ammonium nitrate into a 250.00 ml volumetric flask and diluting to the mark with deionized water?

Respuesta :

The molarity of the solution is 7.704 M.

What is Molarity?

  • In terms of the amount of material per unit volume of solution, molar concentration is a measurement of the concentration of a chemical species, specifically a solute in a solution.
  • The most frequent measure of molarity in chemistry is the number of moles per liter, denoted by the unit symbol mol/L or mol/dm3 in SI units.

Calculation of molarity:

Given,

Mass of solute (ammonium nitrate) = 154.2 g

Volume of solution = 250 ml = 0.25 L

Molar mass of ammonium nitrate = 80.043 g/mol

Number of moles of solute = 154.2/80.043

= 1.926 moles

Molarity = number of moles of solute/ volume of solution

= 1.926/0.25

=7.704 M

Hence, the molarity of the solution is 7.704 M.

Learn more about Molarity here:

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