Question
The procedure will help you with the report sheet i need help with all questions please if possible make sure to read the procedure because it can help you with the report sheet.
1. To use distillation to separate a mixture. 2. To show that distillation can purily a liquid CEDURE ixture will be separated by distillation. The volatile water will be separated from the nonvolatile salt (sodium chloride, NaC). The purity of the collected distilled water will be demonstrated by chemical tests specific for sodium ions (Na") 1. In this experiment a salt-water mi and chloride ions (CI) 2. Assemble an apparatus as illustrated in Figure 4.2. A kit containing the necessary glassware can be obtained from your instructor. The glassware contains standard taper joints, which allow for quick assembly and disassembly. Before fitting the pieces together, apply a light coating of silicone grease to each joint to prevent the joints from sticking 3. Use 100-mL round-bottom flasks for the distilling flask and the receiving flask. Fill the distilling flask with 50 mL of the prepared salt-water mixture. Add two boiling stones to the distilling flask to ensure smooth boiling of the mixture and to prevent bumping. Be sure that the rubber tubing to the condenser enters the lower opening and empties out of the upper opening. Turn on the water faucet and allow the water to fill the jacket of the condenser slowly, so as not to trap air. Take care not to provide too much flow, otherwise the hoses will disconnect from the condenser. Adjust the bulb of the thermometer to below the junction of the condenser and the distillation column. Be sure that the opening of the vacuum adapter is open to the atmosphere.
Explanation / Answer
1. Barometric Pressure: 76 mm Hg (1 atm or 760 Torr).
2. Boiling point of water at measured pressure: 100 0C or 373 K.
3. Temperature of vapour after collecting 1 mL of water: 100 0C.
4. Temperature of vapour at the end of distillation: 100 0C
Solution
Observation with 0.5M AgNO3
Color in flame test
Distilled water
No precipitate
No color
Liquid in boiling flask
White color precipitate
Yellow color flame
Solution
Observation with 0.5M AgNO3
Color in flame test
Distilled water
No precipitate
No color
Liquid in boiling flask
White color precipitate
Yellow color flame
