Question

A student is making a solution of sugar in water. If the student uses 0.49 moles of sugar and enough water to make 442.80 milliliters of solution, what is the molarity of the student's sugar solution? Round your answer to the nearest 0.01 and include units properly abbreviated, but NOT substance!

Answer 1

Step 1

Molarity is defined as:

Molarity (M or mol/L) = moles of solute (sugar)/volume of the solution (L)

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Step 2

Information provided:

Moles of sugar = 0.49 moles

Volume of the solution = 442.80 mL x (1 L/1000 mL) = 0.44280 L

(1 L = 1000 mL)

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Step 3

Procedure:

Molarity = 0.49 moles/0.44280 L = 1.10 mol/L

Answer: Molarity = 1.10 mol/L