1. (TCO 4) Molly needs to make 1 liter of a 1.5 M glucose solution for use in an

Question

1. (TCO 4) Molly needs to make 1 liter of a 1.5 M glucose solution for use in an experiment. The molar mass of glucose is 180.16 g/mol.

(a) What is the solute in the resulting solution? What is the solvent in the resulting solution? How do you know? (5 points)
(b) Is this solution a strong electrolyte, a weak electrolyte, or a nonelectrolyte? Why? (5 points)
(c) How many grams of glucose are required to make 1 L of a 1.5 M glucose solution? Be sure to show your work for full credit. (8 points)
(d) What volume (mL) of a 0.30 M glucose solution can be prepared by diluting 100 mL of a 1.5M glucose solution? Be sure to show your work for full credit. (7 pointts) (Points : 25)

Explanation / Answer

a) the solute is glucose and the solvent is water

b) the solution is a non electrolyte, because, glucose is non-polar in nature

c) molarity = moles of solute/volume of solution in litres

threfore, moles of solute = 1.5

mass of solute = moles of solute*molar mass of solute = 1.5*180.16 = 270.24 g

d) let the volume of 0.3 M glucose solution be V

therefore, 0.3*V = 1.5*100

or, V = 500 ml

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