Problem: What is the molarity of a solution that contains 17g of NH 3 in 0.50 L of solution.

FREE Expert Solution
88% (179 ratings)
FREE Expert Solution

We’re being asked to calculate the molarity (M) of a solution of NH3. Recall that molarity is the ratio of the moles of solute and the volume of solution (in liters). In other words:



We first need to determine the number of moles of NH3 since this is the only information missing for us to find molarity. Notice that the volume of the solution in liters is already given.


We’re given the mass of NH3, 17 g. We can use the molar mass of NH3 to find the moles. The molar mass of NH3 is:

NH3     1 N × 14 g/mol N = 14 g/mol          

            3 H × 1 g/mol H = g/mol     

  Sum = 17 g/mol

88% (179 ratings)
View Complete Written Solution
Problem Details

What is the molarity of a solution that contains 17g of NH 3 in 0.50 L of solution.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

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.

What is the difficulty of this problem?

Our tutors rated the difficulty ofWhat is the molarity of a solution that contains 17g of NH 3...as low difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 2 minutes and 6 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Dominguez's class at MDC.