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11 Cards in this Set
- Front
- Back
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What is the result of elemental analysis? |
Determination of empirical and molecular formula |
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What is the purpose of IHD? |
Determine number of double bonds, triple bonds, and or rings |
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What is the purpose of IR? |
Determine functional groups ( hypothetical structure) |
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What is the purpose of NMR? |
Determine the electronic environment around each H nucleus (exact structure of unknown) |
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What is the purpose of obtaining melting and boiling points? |
Determine physical properties of unknown |
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What is saturation? |
Maximum number of hydrogens |
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What does a IHD of 1 represent? |
One double bond or one ring |
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What does a IHD of 4 represent? |
Benzene ring |
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What does a IHD of 2 represent? |
Triple bond |
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What is the formula for IHD? |
(2C + 2 - H) + N - X/ 2 X = Halide |
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What can decrease true melting points of a compound? |
1. Presence of impurities 2. Heating the apparatus too quickly |
