How many molecules are in a sample of sucrose (sugar), C₁₂H₂₂O₁₁ that has a mass of 15.0 g?

Name: How many molecules are in a sample of sucrose (sugar), C 12 H 22 O 11 that has a mass of 15.0 g?
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Question

Quizplus · Accepted Answer

The molar mass of sucrose is 342.3 g/mol. So, 15.0 g of sucrose is equal to 15.0 g / 342.3 g/mol = 0.0438 mol. 1 mol of sucrose contains 6.022 x 10^23 molecules. So, 0.0438 mol of sucrose contains 0.0438 mol x 6.022 x 10^23 molecules/mol = 2.64 x 10^22 molecules.

How Many Molecules Are in a Sample of Sucrose (Sugar)