Calculate the moles of sucrose, C₁₂H₂₂O₁₁, in a 15.0-g sample of this substance.

Question

Quizplus · Accepted Answer

The molecular formula for sucrose is C12H22O11. To find the molar mass, we add up the atomic masses of all the atoms in the molecule: (12 × 12.01 g/mol) + (22 × 1.01 g/mol) + (11 × 16.00 g/mol) = 144.12 g/mol + 22.22 g/mol + 176.00 g/mol = 342.34 g/mol. To find the moles of sucrose in a 15.0-g sample, we use the formula moles = mass / molar mass = 15.0 g / 342.34 g/mol ≈ 4.38 × 10^-2 mol.

Calculate the Moles of Sucrose, C12H22O11, in a 15

Calculate the Moles of Sucrose, C₁₂H₂₂O₁₁, in a 15