Using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. Use 3 – 4 sentences in your explanation

Question

Using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk.  Use 3 – 4 sentences in your explanation

photon336 · Answer

Sodium chloride NaCl

Calcium chloride CaCl2

What do you know about colligative properties?

anonymous · Answer

nothing really

photon336 · Answer

Okay read this and let me know if you get it as I describe the concepts. 

Colliagitve properties (just means the number of molecules) like how much stuff you're putting into a solution:  


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Got this?

anonymous · Answer

yes

photon336 · Answer

Ok, now another concept: 

When we dissolve a solute in say a solvent two things happens: 

it lowers the freezing point, and elevates the boiling point. 

Generally speaking when we add something to a solution it increases the boiling point and lowers the freezing point, does this make sense and can you tell me why? 

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