What is the molarity of a solution prepared by placing 7.2 g of glucose in a volumetric flask and adding water to get 250.0 mL of solution?

Answer 1

it is pretty dilute, if you assume the density of the solution is close to 1.00, then the amount of solvent added was 250 grams. Without other information, you have to assume that.

molarity=molessolute/.250kg

Answer 2

mols glucose = grams/molar mass = ?
M = mols/0.250 L = ?

I get an answer of 0.16 = M