Posted by Elaine on Tuesday, January 24, 2012 at 1:40pm.
25% means 25 g NaCl/100 g soln so if we have 150 g of the soln we have
25g NaCl x (150/100) = 37.5 g NaCl in 150 g soln. Since the volume is 145, then d = m/v = 37.5/145 mL = ? g/mL.
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