Problem: Ammonium chloride, NH4Cl, is a very soluble salt in water.If you dissolve 16 g of ammonium chloride in 500.0 mL of water, what is the molar concentration of the solution?

FREE Expert Solution

We’re being asked to calculate the molarity (M) of ammonium chloride (NH4Cl) in a solution. Recall that molarity is the ratio of the moles of solute and the volume of solution (in liters). In other words:


Molarity(M) = moles of soluteLiters of solution


We first need to determine the number of moles of NH4Cl


To find the moles of NH4Cl, we’ll need its molar mass. The molar mass of NH4Cl is:

NH4Cl        1 N × 14.01 g/mol C = 14.01 g/mol

                  4 H × 1.01   g/mol H = 4.04 g/mol        

                  1 Cl × 35.45 g/mol O = 35.45 g/mol     

  Sum = 52.5 g/mol


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Problem Details

Ammonium chloride, NH4Cl, is a very soluble salt in water.

If you dissolve 16 g of ammonium chloride in 500.0 mL of water, what is the molar concentration of the solution?

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Our tutors have indicated that to solve this problem you will need to apply the Molarity concept. You can view video lessons to learn Molarity. Or if you need more Molarity practice, you can also practice Molarity practice problems.

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