Homework Help: Chemistry

Posted by Lisa on Sunday, March 25, 2012 at 12:28pm.

Consider the HF solution with the concentration 5%(w/v). Calculate its concentration in the molarity. Use four significant figures in the answer.

Chemistry - DrBob222, Sunday, March 25, 2012 at 12:31pm
5% w/v means 5 g HF/100 mL soln or 50 g HF/1000 mL soln.
50g HF = how many mols? mols = grams/molar mass, then
M = moles/L

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