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Chem 10 Quiz - The mole concept

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Chemistry 10 Quiz - Compounds and the mole
1. What are the units for atomic mass? Write the full name and abbreviations.
2. What is the molecular mass of NH3?
3. Why is the molar mass of carbon atoms not exactly equal to 12 g?
4. What is the mass percentage of water in H3AsO4·5H2O?
5. What is the chemical name of K2S? What type of compound is it and why?
6. What is the chemical formula of the ionic compound copper(I) oxide?
7. What is one mole?
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