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10 Cards in this Set
- Front
- Back
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How to calculate density in ideal gas equation |
Back (Definition)
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Molecular formula |
Molecular formula of a compound gives the actual numbers of atoms of each element in a molecule |
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Relative atomic mass |
Mass of 1 mole of atoms of an element 1/12th mass of 1 mole of 12C |
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Chlorate |
ClO3- |
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Percentage uncertainity |
Absolute uncertainty ( eg +_ 0.1) / measured value |
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How are ions in mass spectrometry deflected |
Electric field |
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State what can be adjusted in the mass spectrometer to enable ions formed by the different isotopes to be directed into the detector |
+ electromagnet + electric field |
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Relative formula mass |
The mass of a formula unit of an ionic substance relative to 1/12 the mass of one atom of carbon -12 |
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Relative molecular mass |
The mass of a molecule relative to 1/12 the mass of one atom of carbon -12 ( symbol M) |
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Define dipole |
The unequal sharing of electron density in a molecule resulting in regions of a partial positive charge and regions with partial negative charge |
