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11 Cards in this Set
- Front
- Back
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Atomic mass |
The mass of 1 atom; units amu or g/mol |
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Atomic mass unit (amu) |
1/12th the mass of a carbon-12 atom |
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Avogadro's Hypothesis |
Equal volumes of any two gases (or gas mixtures) at the same temperature and pressure will contain equal numbers of particles |
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Molar mass |
The mass of 1 mole of a substance |
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Diatomic molecule |
A molecule made of just two [identical] atoms |
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Empirical formula |
The molecular formula re-written with lowest whole number mole ratio of atoms |
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Molecular formula |
The chemical formula for a molecule |
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Hydrates |
Solid ionic compound with some number of H2O molecules incorporated into the crystal structure |
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Anhydrous compound |
The ionic compound formed when all water molecules in a hydrate are driven off by heating |
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Percent composition |
The % by mass of each element in a compound |
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Molarity (molar concentration) |
Moles of solute divided by liters of solution |
