#
**Problem**: Calculate the molarity of an aqueous solution that is 22.3% by mass calcium chloride. You might need to know that the density is 1.20 g/mL.A. 0.96B. 2.41C. 0.0024D. 3.54E. 0.035

###### FREE Expert Solution

We’re being asked to **calculate the molarity (M)** of **an aqueous solution that is 22.3% by mass calcium chloride**. Recall that ** molarity** is the ratio of the moles of solute and the volume of solution (in liters). In other words:

$\overline{){\mathbf{molarity}}{\mathbf{}}{\mathbf{\left(}}{\mathbf{M}}{\mathbf{\right)}}{\mathbf{=}}\frac{\mathbf{moles}\mathbf{}\mathbf{solute}}{\mathbf{L}\mathbf{}\mathbf{solution}}}$

We first need to determine the number of moles of** calcium chloride (CaCl _{2})**. We’re given the mass percent of calcium chloride in the solution water,

**22.3%**. Recall that

**is given by:**

*mass percent*$\overline{){\mathbf{\%}}{\mathbf{}}{\mathbf{Mass}}{\mathbf{=}}\frac{\mathbf{mass}\mathbf{}\mathbf{of}\mathbf{}{\mathbf{CaCl}}_{\mathbf{2}}}{\mathbf{mass}\mathbf{}\mathbf{of}\mathbf{}\mathbf{solution}}}$

###### Problem Details

Calculate the molarity of an aqueous solution that is 22.3% by mass calcium chloride. You might need to know that the density is 1.20 g/mL.

A. 0.96

B. 2.41

C. 0.0024

D. 3.54

E. 0.035

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 professor is this problem relevant for?

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