What solvent is used to rinse the beaker when filtration while cold?Question 15Answera.Methanolb.Ethanolc.Propanold.Butanol
Question
What solvent is used to rinse the beaker when filtration while cold?
Question 15
Answer
- a. Methanol
- b. Ethanol
- c. Propanol
- d. Butanol
Solution
When performing filtration in a laboratory setting, especially a cold filtration, the choice of solvent for rinsing the beaker can significantly impact the results.
Solvent Properties
- Methanol: A polar solvent, often used in various reactions and as a rinse. However, it may dissolve specific compounds that are intended to be retained.
- Ethanol: Also a polar solvent, ethanol is commonly used in laboratories and can effectively rinse away impurities while not dissolving a wide range of organic substances.
- Propanol: Less commonly used in cold extractions, it is effective but may not interact the same way with water-soluble substances as ethanol or methanol.
- Butanol: This solvent is larger and less polar than ethanol or methanol, which may not be ideal for rinsing in cold filtration situations where a polar solvent is preferred.
Conclusion
Among the options given and common laboratory practice, ethanol is the best solvent to rinse the beaker during cold filtration, as it is effective in cleaning glassware without excessively dissolving the desired compounds.
Final Answer
b. Ethanol
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