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During the cooling of the naphthalene why the boiling tube must be placed in a conical flask?
Placing the boiling tube in a conical flask during the cooling process helps to prevent any naphthalene vapor from escaping into the environment. The conical flask acts as a containment vessel, allowing the naphthalene to condense back into solid form inside the boiling tube, making it easier to collect and handle afterward. Additionally, this setup minimizes any potential hazards associated with inhaling the vapors.
During the cooling of naphthalene explain why the naphthalene must be stirred continuosly?
Stirring the naphthalene continuously during cooling helps to promote even heat distribution and prevent the formation of hot spots. This ensures that the naphthalene cools uniformly, reducing the risk of crystallization issues and improving the overall quality of the solid product.
How do naphthalene balls become smaller. name the process?
Naphthalene balls decrease in size due to sublimation, a process where the solid naphthalene directly transitions into a gas without passing through the liquid phase. This gradual transition causes the naphthalene balls to shrink over time.
How do you separate naphthalene from sand?
One way to separate naphthalene from sand is by sublimation. By heating the mixture, the naphthalene will undergo sublimation, turning into a gas and leaving behind the sand. The gas can then be collected and cooled back into solid naphthalene.
What is the solute and solvent of naphthalene on air?
In this context, the solute is naphthalene while the solvent is air. Naphthalene is the substance that is being dissolved in the air.
During the cooling of the naphthalene why the boiling tube must be placed in a conical flask?
Placing the boiling tube in a conical flask during the cooling process helps to prevent any naphthalene vapor from escaping into the environment. The conical flask acts as a containment vessel, allowing the naphthalene to condense back into solid form inside the boiling tube, making it easier to collect and handle afterward. Additionally, this setup minimizes any potential hazards associated with inhaling the vapors.
How do naphthalene balls become smaller. name the process?
Naphthalene balls decrease in size due to sublimation, a process where the solid naphthalene directly transitions into a gas without passing through the liquid phase. This gradual transition causes the naphthalene balls to shrink over time.
During the cooling of naphthalene explain why the naphthalene must be stirred continuosly?
Stirring the naphthalene continuously during cooling helps to promote even heat distribution and prevent the formation of hot spots. This ensures that the naphthalene cools uniformly, reducing the risk of crystallization issues and improving the overall quality of the solid product.
Why is the naphthalene solution cooled in an ice bath before vacuum filtration by recrystallization?
Cooling the naphthalene solution in an ice bath helps to promote the formation of pure crystals by reducing the solubility of impurities. When the solution is cooled, the naphthalene crystallizes out, while most impurities remain dissolved in the solution. This improves the efficiency of the vacuum filtration process by ensuring a higher purity product.
How do you separate naphthalene from sand?
One way to separate naphthalene from sand is by sublimation. By heating the mixture, the naphthalene will undergo sublimation, turning into a gas and leaving behind the sand. The gas can then be collected and cooled back into solid naphthalene.
Why naphthale ne ball disappeares?
Naphthalene balls, commonly used as mothballs, gradually disappear due to sublimation, a process where solid naphthalene transitions directly into gas without becoming liquid. As the naphthalene evaporates, it disperses into the air, leading to a reduction in the size of the balls. This process can be accelerated by factors such as heat and airflow. Over time, this results in the complete disappearance of the naphthalene balls.
By which process can you separate a mixture of naphthalene and chalk powder?
Sublimation can be used to separate naphthalene from chalk powder. Naphthalene sublimes at room temperature, while chalk powder does not, allowing for the separation based on this difference in physical properties.
Why a gray color in naphthalene sample after usual purification process?
The gray color in a naphthalene sample after the usual purification process could be due to impurities that were not completely removed during the purification process. It is possible that the impurities present in the sample contributed to the gray coloration. Additional purification steps may be necessary to obtain a pure white sample of naphthalene.
What is the process of separating water and naphthalene?
Filtration because it says that it can separate fine solid from liquids.
What are some sources of error of the experiment finding the solidification of molten naphthalene?
Sources of error in the experiment measuring the solidification of molten naphthalene can include inaccuracies in temperature measurement due to faulty or improperly calibrated thermometers, which could lead to incorrect phase change readings. Additionally, impurities in the naphthalene sample may alter its melting point, affecting the results. Inconsistent cooling rates or environmental temperature fluctuations could also impact the solidification process. Lastly, human error in timing the solidification or misreading the thermometer can contribute to inaccuracies in the data collected.
Why is a water bath used to heat the solid naphthalene?
A water bath is used to heat solid naphthalene to ensure uniform and controlled heating. This method prevents localized overheating that could lead to decomposition or degradation of the naphthalene. Additionally, the temperature of the water bath can be easily regulated, allowing for precise temperature control during the melting process. This results in a more consistent and safe melting of the solid naphthalene.
How do you make liquid naphthalene?
Liquid naphthalene is typically obtained by melting solid naphthalene. This can be done by heating solid naphthalene to around 80 degrees Celsius until it liquefies. It is important to handle naphthalene with care as it is toxic and flammable.
