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In the extraction of tea with methylene chloride and water will methylene chloride be the upper or lower level?
Wiki User
∙ 12y ago
Just compare the densities of both water and CH2Cl2. Water is less dense and will be in the top (aqueous) layer. CH2Cl2 is more dense and will be on the bottom (organic) layer.
Density H2O = 1.00 g/cm3
Density CH2Cl2 = 1.33 g/cm3
Wiki User
∙ 12y ago
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Why calcium chloride added in sodium chloride to lower the melting point?
The heat of dissolution for calcium chloride in water is greater compared with the same paremeter for sodium chloride; consequently the process of dissolution need more heat from the environment and the freezing point of the water solution is lower.
Melting point of NaCl lower by the addition of calcium chloride?
because of common ion effect
When compared to pure water what will a 0.5 M solution of potassium chloride have a. lower boiling point b. lower freezing point c. higher capor pressure d. lower osmotic pressure?
a lower freezing point
How will the vapor pressure of pure water compare to an aqueous solution of sodium chloride?
The solution's vapor pressure will be lower.
What are the uses of alkaline earth metal?
Magnesium oxide is used in the lining of furnaces. Magnesium hydroxide is used in making of anti-acid tablets. Calcium chloride is used in the extraction of sodium metal,to lower the melting point of NaCl. Calcium sulphate is used as plaster of paris to set fractured bones. Calcium oxide is used as a drying agent,is also used to raise the soil pH.
When dichloromethane is mixed with water will the organic phase be in the upper level or lower level?
Dichloromethane (methylene chloride) has a higher density than water. It will settle to the bottom of a dichloromethane:water mixture. Is this what you are asking?
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Why calcium chloride added in sodium chloride to lower the melting point?
The heat of dissolution for calcium chloride in water is greater compared with the same paremeter for sodium chloride; consequently the process of dissolution need more heat from the environment and the freezing point of the water solution is lower.
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How can salt be changed?
Normally the salt (sodium chloride) in a salt-water pool does not need changing. it does however need to be toped up once in a while to maintain the correct salt level for the chlorinator. However if the saltwater system is being changed to a Magnesium & potassium chloride system some water may have to be sacrificed to lower the sodium chloride level. it would be best to seek advice from chlorinator manufacturers on the technicalities in this case.
Why is water lower than the melting point of sodium chloride?
Sodium chloride is a ionic compound. Generally they have high melting points.
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on the show Webster what did he use to get from upper level to lower level
Why does normal water have lower sodium chloride levels than salt water?
Because sodium chloride is salt! Obviously normal water has lower salt levels than salt water.
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The lower level is .01, which is much lower than .08.
Why calcium chloride is added with sodium chloride in metallurgy of sodium?
Because the mixture NaCl + CaCl2 has a lower melting point that NaCl.
Can you use sodium chloride to lower pH level in pools?
I have never heard of it being used for that purpose and cant find any reference to it being used for that purpose. any acid would lower Ph however that does not mean that it wont have undesirable side effects.
