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4 Cards in this Set
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- Back
How do you calculate the rF value? |
Distance moved by substance ÷ distance moved by solvent |
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What is a solvent? |
A liquid that dissolves a solute.
E.g. Ethanol or water |
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How does chromatography methods distinguish pure substances from impure substances? |
Single spot produced on the chromatagram using all different solvents. |
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What is a pure substance? |
Only contains a single element or compound & melts or boils at a specific temperature. |