nacl may be spread on an icy sidewalk in order to melt ice equimolar amounts of...

nacl may be spread on an icy sidewalk in order to melt ice equimolar amounts of cacl2 are even more effective. explain both

Solutions

Expert Solution

NaCl gives two moles of ions as

1NaCl <====> 1Na+ + 1Cl- (total two ions)

Whereasd, CaCl2 gives three moles of ions as:

1CaCl2 <=====> 1Ca2+ + 2Cl- (total three ions)

SO, the number of moles of ions are more in CaCl2 hence, it will provide more depression in freezing point than NaCl with equimolar amounts.

queen_honey_blossom answered 1 year ago

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