Problem: What is the concentration of barium ions in a 0.750 M BaCl2 solution?a. 0.375 Mb. 1.50 Mc. 2.25 Md. 0.750 Me. 0.160 M

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We’re being asked to calculate the concentration of the barium ions (Ba2+) in a 0.750 M BaCl2 solution. Recall that molarity is the ratio of the moles of solute and the volume of solution (in liters). In other words:

molarity (M)=molL

Since the BaCl2 is an ionic compound, it forms ions when dissociating in water. The dissociation of BaCl2 in water is as follows:

BaCl2(s)  Ba2+(aq) + 2 Cl(aq)

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Problem Details

What is the concentration of barium ions in a 0.750 M BaCl2 solution?

a. 0.375 M

b. 1.50 M

c. 2.25 M

d. 0.750 M

e. 0.160 M

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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 Naming Ionic Compounds concept. You can view video lessons to learn Naming Ionic Compounds. Or if you need more Naming Ionic Compounds practice, you can also practice Naming Ionic Compounds practice problems.

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