Answer:
Molarity is defined as the number of moles of solute per liter of solution. In this problem, we are given the number of moles of sugar and the volume of the solution in milliliters. We first need to convert the volume to liters before we can calculate the molarity.
To convert milliliters to liters, we divide by 1000:
908.08 milliliters = 908.08/1000 = 0.90808 liters
Now we can use the formula for molarity:
Molarity = moles of solute / liters of solution
Plugging in the given values, we get:
Molarity = 0.55 moles / 0.90808 liters
Molarity = 0.606 M (rounded to three significant figures)
Therefore, the molarity of the student's sugar solution is 0.606 M.