A serving of a particular fruit dessert contains 20.0 g of sugar. If all the sugar is sucrose, C₁₂H₂₂O₁₁, how many molecules of sugar are present in this serving?

Question

Quizplus · Accepted Answer

To find the number of molecules, first calculate the moles of sucrose: Molar mass of sucrose = 342.3 g/mol. Moles of sucrose = 20.0 g / 342.3 g/mol = 0.0584 mol. Then, multiply by Avogadro's number (6.022 × 10^23 molecules/mol) to find the number of molecules: 0.0584 mol × 6.022 × 10^23 molecules/mol = 3.52 × 10^22 molecules.

A Serving of a Particular Fruit Dessert Contains 20