Problem 11.33

[aless_wu]

I can sort of see how the value 6.9 was calculated, but I'm having a little trouble understanding why the top values are something like 1.0x10^-4 instead of the given value 0.1 mmol. Is there a specific unit being used for this generally? Hope that made sense.

[Ricky Z1D]

As you have written out, the problem gave .1 mmol (millimoles). You want to convert moles to concentration which is moles/Liters. Liters is already in the correct units of .5 liters (rather than milliliter). So you have to convert .1 mmol to mols before calculating. So that is .1 mmol * 10^-3 or 1 * 10^-4 mols.