Is there a difference between concentration and molarity?

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Nathan Tran 4K
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Is there a difference between concentration and molarity?

Postby Nathan Tran 4K » Mon Dec 03, 2018 9:31 pm

I noticed when we did pH computations, we used the concentration of specific ions or molecules. When we did this, we used M, which is the unit for molarity of moles/liters. However, I always understood concentration as g/L of Kg/L. What is the difference between molarity and concentration? Is there a reason why we are using molarity in these calculations?

Chem_Mod
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Re: Is there a difference between concentration and molarity?

Postby Chem_Mod » Mon Dec 03, 2018 10:41 pm

In chemistry, you will most often use molarity M as the units for concentration. (moles/L)

A De Castro 14B 2H
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Re: Is there a difference between concentration and molarity?

Postby A De Castro 14B 2H » Tue Dec 04, 2018 1:20 am

Yes, there is a difference between concentration and molarity. As you indicated with "concentration as g/L of Kg/L," concentration is the ratio of the amount of solute per amount of solution. Meanwhile, molarity is a unit of concentration that relates the amount of moles of a solute per liter of solution.


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