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Essay Details:
Essay text:
1. To determine the identity of an unknown by its melting point.
2. To confirm the identity of an unknown by using the mixed melting point technique.
MATERIALS
8 Known chemicals with literature melting points.
Name of Known Lit. M.P. Name of Known Lit. M.P
Adipic Acid 151?c - 153?c Resorcinol 109?c - 110?c
Citric Acid 152?c - 153?c Toluic Acid 110?c - 112?c
Naphthalene 80?c Phenyl acetic Acid 77?c - 78?c
Phenacetin 134?c-135?c Urea 133?c - 134?c
EQUIPMENT & APPARATUS
Meltemp Apparatus: Heating block used to melt chemicals at unknown temperatures.
Capillary tubes: Tubes used to hold chemicals to be melted...
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