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Questions and Answers
What is the range of melting point for a pure, nonionic, crystalline organic compound?
What is the range of melting point for a pure, nonionic, crystalline organic compound?
- 0.5-1.0 oC (correct)
- 0-0.5 oC
- 1.0-1.5 oC
- 1.5-2.0 oC
What effect does a mixture of very small amounts of miscible impurities have on the melting point of a compound?
What effect does a mixture of very small amounts of miscible impurities have on the melting point of a compound?
- It increases the melting point range (correct)
- It decreases the melting point range
- It changes the color of the compound
- It has no effect on the melting point.
What is the difference between the melting point of pure and impure samples of the same compound?
What is the difference between the melting point of pure and impure samples of the same compound?
- Pure samples have a wider melting point range
- Impure samples melt at lower temperatures and over a wider range (correct)
- Pure samples melt at lower temperatures.
- Impure samples have a sharper melting point.
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