and (4)2. The most officient way to cool a solution in a fiask below room temper
ID: 544562 • Letter: A
Question
and (4)2. The most officient way to cool a solution in a fiask below room temperature is by placing the f nask containing the solution in a copper pot that contains 3. If a chemical reaction occurs very slowly at room temperature , what can be fy laboratory to increase the rate of reaction? (3) 4. The process of Extyach2n b sed to purifty some liquid organic compounds 5. A more efficien (3 solvent to evaporation is to tway to heat a solution for a long period of time without losing any of the the solution. 6. Any time a liquid is being heated, iinaalips-shou be added to the solution or mixture to prevent bumping 7. Flames are rarely used for heating in the organic laboratory because of the unstability -of most organic solvents 8. Decolorizing charcoal or carbon is used to remove impumties from an organic compound. List 2 properties of a good recrystalization solvent:Explanation / Answer
Answer:
2. The most efficient way to cool a solution in a flask below room temperature is by placing the flask containing the solution in a copper pot that contains water and ice. It will lower the temperature of solution below room temperature.
3. If a chemical reaction very slowly at room temperature, the chemical reaction is heated in the laboratory. Heating of the reaction in the laboratory increases the rate of reaction.
4. The process of fractional distillation can be used to purify some liquid organic compounds.
5. A more efficient way to heat a solution for a long period of time without losing any of the solvent to evaporation is to use the condenser to condense the solvent back to the solution.
6. Any time a liquid is being heated; boiling chips should be added to the solution or mixture to prevent bumping. This is because the boiling chips breaks the pressure created for bumping.
7. Flames are rarely used for heating in the organic laboratory because of the unstability and exploding nature of most organic compounds. The temperature of flame is high which degrade the organic compounds. It may also explode.
8. Decolorizing charcoal or carbon is used to remove the color and inorganic impurities from an organic compound. The decolorizing charcoal or carbon used in the purification process adsorbs the inorganic compounds. Thus, it is removed from the compound.
Properties of a good recrystallization solvent:
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