posted by Mindy on .
Pure acetic acid, known as glacial acetic acid, is a liquid with a density of 1.049 g/mL at 25°C. Calculate the molarity of a solution of acetic acid made by dissolving 10.00 mL of glacial acetic acid at 25°C in enough water to make 150.0 mL of solution.
density glacial acetic acid is 1.049 g/mL. How many grams acetic acid do we have in the 10.00 mL glacial acetic acid? That will be 1.049 g/mL x 10.00 mL = 10.49 grams. How many moles is that?
10.49/60 (you look up the molar mass and do it exactly following my estimates) = 0.17 moles.
M = moles/L
M = 0.17/0.150 L = ??
about 1.16 M