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AP Chemistry183 views·Updated Aug 8, 2026Introduction to Moles and Avogadro's Number
Practice converting between mass, moles, and number of particles using Avogadro's constant and the fundamental concept of the mole.
A sample of pure calcium carbonate (CaCO3, molar mass = 100.1 g/mol) has a mass of 50.05 g. How many total oxygen atoms are present in this sample?
- A sample of pure calcium carbonate (CaCO3, molar mass = 100.1 g/mol) has a mass of 50.05 g. How many total oxygen atoms are present in this sample? — 9.033 x 10^23 atoms
- Which of the following samples contains the greatest number of atoms? — 1.0 mole of solid Cyanoform (HC(CN)3)
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