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Concentration % Review From Last Class • Solution = solute + solvent • Concentration C=m/V C: concentration (g/L) m: mass of solute (grams) V: volume of solution (litres) Percentage 10 10 Percent • If we’re a class of 29 students and 4 students went to the science fair, what percentage of students went? Percent m/V • We can also measure concentration in % (m/V) Percent m/V 100ml of solution 1 ml of water (solvent) 1 g of solute In other words • X% = Xg/100ml • So if I have an 8% (m/V) solution, how many grams of solute do I have in 100ml of solution? Situation Practice Problem What is the % concentration of sugar in a 355ml can of Coca-Cola? Given: Find: Practice Problem What is the % concentration of sugar in a 591ml bottle of Gatorade? Given: Find: Example What is the maximum volume that Sarah can make of an 8% solution of chocolate milk if she uses 24g of Nesquik powder? Given: Find: