Question

5. A glucose solution with a volume of 2.0 L contains 72 g glucose (C6H12O6). If glucose has a molar mass of 180. g/mole, what is the molarity of the glucose solution?

Answer 1

@paki

Answer 2

@divu.mkr @angrybadger.exe @FrostFlare23

Answer 3

Well, start off with what you want and what you know.

Molarity is moles per unit volume, meaning moles per L

So that means you need to convert the mass of glucose (which is already given to you) and divide it by its molar mass (which is the number of atoms multiplied by the amount of atoms all summed up together).

So 6[12.00] + 12[1.008] + 6[18.00] = molar mass of glucose.

then divide it by your volume to get molarity (concentration)