Now that we know what Molarity is, we can use it to help us calculate unknowns. We're going to say problems with a molarity value present can use a given amount and conversion factors to isolate and end amount. Now if you haven't watched our videos on dimensional analysis and conversion factors, I highly suggest you go back and take a look because it's just a continuation of this.
We're now incorporating Molarity into our calculations. Now the Molarity value itself can represent one of those conversion factors, because remember conversion factors possess two different units connected together. Now for example, we say 5.8 molar sodium chloride. 5.8 molar represents 5.8 moles of NaCl within one liter of solution.
And because we're using two different units connected together, this is a conversion factor. So we can write it as 5.8moles of NaCl 1liter of solution. So this is what 5.8 molar really represents. So keep that in mind when we start doing calculations that incorporate molarity.