Clean dry 2 ml 2 ml 6 ml 6 2 4 ml heat in a secure

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Clean, Dry
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2 mL 2 mL 6 mL { 6 2 = 4 mL
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Heat in a SECURE water bath - use RING and EXTENSION CLAMP Tilt the flask Extension Clamp Clamp holder Ring Wire gauze Cook at 100oC for 20 minutes
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Make sure liquid level in flask is below water in bath.
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Add H2O to reaction mixture in Specified amounts Filter using VACUUM FILTRATION apparatus Wash with SMALL AMOUNT of water Save SOLID! Need PRODUCT for two more exercises
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PRECAUTIONS ACETIC ANHYDRIDE : CORROSIVE, FLAMMABLE & LACHRYMATOR CONC. SULFURIC ACID : VERY CORROSIVE FERRIC CHLORIDE : CORROSIVE SALICYLIC ACID & ASPIRIN : IRRITANTS DON'T INHALE DUST ETHANOL : TOXIC AND FLAMMABLE DISPOSE OF EXCESS REAGENTS IN WASTE CONTAINERS
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PERFORM QUALITATIVE TESTS 1. FERRIC CHLORIDE TEST : Color is based on complex formed by the reaction of Purple Complex will be basis for future colorimetric assay OH 2 Fe OH 2 OH 2 H 2 O H 2 O OH 2 +3 HO C O HO OH 2 Fe OH 2 H 2 O H 2 O +1 O C O O + Fe+3 with Salicylic Acid YELLOW PURPLE to form
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PERFORM QUALITATIVE TESTS FERRIC CHLORIDE TEST : The formation of a similar complex of Fe+3 with ASPIRIN is blocked by the CH3CO group. OH 2 Fe OH 2 OH 2 H 2 O H 2 O OH 2 +3 + YELLOW C O HO O C O CH 3 X
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2. HEAT TEST - SMELL WITH CARE: 3. MELTING POINT C HO O O O CH 3 C HO O OH CH 3 C OH O + H2O Heat + Dry a small amount (1/4 spatula-ful) of sample to determine the melting point of the product. Vinegar
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SAVE PRODUCT FOR NEXT TWO WEEK'S EXERCISES !!!!!!!!! Have data sheet initialed by TA and keep it until next week when you will reweigh the aspirin to get your YIELD NEXT Tuesday Aspirin purity by pH titration SUSB - 012 & SUPL - 006 Do Pre-Lab of SUSB - 012
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Word of the Day “Without chemicals, life itself would be impossible” Anonymous
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