posted by Josh .
A sample of Hydrochloric Acid (HCl) has a concentration of 5.00 %(m/v). Determine the molar concentration of the solution.
5% means 5 g HCl in 100 mL soln.
5g = how many mols. mols = grams/molar mass.
Convert mols in 100 mL soln to mols in 1L.
Then M = mols/L