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Melting point of NaCl lower by the addition of calcium chloride?
Wiki User
∙ 13y ago
because of common ion effect
Wiki User
∙ 13y 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.
Can Small amounts of water can lower partial melting temperatures in silicate rocks?
The addition of water can lower partial melting temperatures in silicate rocks.
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.
Does calcium chloride raise or lower boiling point and freezing point of water at standard pressure?
The boiling point will increase with the addition of CaCl. I did an experiment where I added 13.002g of CaCl to 30mL of H2O and it raised the boiling point to 112oC. The initial reaction of CaCl and water produces heat in itself. The solution I used raised the water temperature to 75oC before the heat source was added to the water. I haven't experimented with the freezing point yet but I am assuming it will lower it because Calcium Chloride is an ionic salt and there is a tendency in ionic salts to lower the freezing point.
What melts ice faster calcium chloride or sodium chloride?
Sounds like a great question to be answered with an experiment. Take equal amounts of ice in identical containers at the same temperature, sprinkle each set of ice cubes with equal amounts of the different substances, also at the same temperature, then observe which container of ice cubes melts the fastest. Here are more opinions and answers from other FAQ Farmers: * In my experience, calcium chloride melts ice fastest. Cat litter doesn't dissolve, so it obviously can't lower the freezing point of ice. * We did this experiment for school. We found out that calcium chloride did work the best, but rubbing alcohol and rock salt worked well, too. We also found out that the cat box litter did not work at all. All it did was absorb all the ice and water and make a big ice chunk.
Why calcium chloride is added with sodium chloride in metallurgy of sodium?
Because the mixture NaCl + CaCl2 has a lower melting point that NaCl.
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.
Why is water lower than the melting point of sodium chloride?
Sodium chloride is a ionic compound. Generally they have high melting points.
How is sodium metal prepared?
Using Downs process, by the electrolysis of molten sodium chloride. This is done in a Downs Cell in which the NaCl is mixed with calcium chloride to lower the melting point below 700 °C. As calcium is less electropositive than sodium, no calcium will be deposited at the cathode. This method is less expensive than the previous Castner process of electrolyzing sodium hydroxide.
Can Small amounts of water can lower partial melting temperatures in silicate rocks?
The addition of water can lower partial melting temperatures in silicate rocks.
Why does calcium chloride lower the freezing point of ice or water?
Calcium chloride dissociates and gets in between the water molecules. Its kind of like trying to stack a bunch of books with marbles in between.
Why is CaCl2 used to clear snow in cold countries?
CaCl2, or calcium chloride, is used as a de-icer to clear snow in cold countries because it is highly effective in melting ice and snow. Calcium chloride has a lower freezing point than water, allowing it to remain in a liquid state even in extremely cold temperatures. It is also hygroscopic, meaning it attracts moisture from the air and forms a brine solution that melts snow and ice on contact.
How NACL helps in melting of ice?
Sodium chloride (salt) lowers the melting point of ice - so it turns back to water at a lower temperature that it would normally.
What evidence do we have that convinces us that sodium chloride is an ionic compound?
It has a very high melting point, whereas most molecular substances have lower melting points. When it dissolves in water, the sodium and chloride ions dissociate and the resulting salt water conducts electricity.
How much of change in the heart rate of the frog did you see after the addition of calciumm chloride?
It will lower the heart rate.
Does salt have a higher or lower melting point than Na or Cl?
Common table salt (sodium chloride) has a much higher melting point than either sodium or chlorine.
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.
