What is the molarity of a 6.56% by mass glucose (C₆H₁₂O₆) solution? (The density of the solution is 1.03 g/mL.)

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SORT You are given the con- centration of a glucose solution in percent by mass and the density of the solution. Find the concentra- tion of the solution in molarity. STRATEGIZE Begin with the mass percent concentration of the solution written as a ratio, and separate the numerator from the denominator. Convert the numerator from g C6H12O6 to mol C6H12O6. Convert the denomi- nator from g solution to mL of solution and then to L solution. Divide the numerator (now in mol) by the denominator (now in L) to obtain molarity. GIVEN: 6.56% C6H12O6 density 1.03 g/mL FIND: M CONCEPTUAL PLAN 8 C6H12O6 g soln g C6H12O6 g soln mol C6H1206 1 mol 180.16 g C6H1206 ml. soln 1 mL 1.03 g 10-³L 1 mL L soln mol C6H1206 L soln M