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The 0.1 M solution which has lowest freezing point temperature is: MgCl2 HClO4 NH4OH KOH

The 0.1 M solution which has lowest freezing point temperature is:

MgCl2
HClO4
NH4OH
KOH

Grade:

2 Answers

Rituraj Tiwari
askIITians Faculty 1792 Points
10 months ago
dear student,
All the given solutions have the same molarity. The solution which has the lowest freezing point temperature is0.1MMgCl2​.
The solution which has the lowest freezing point temperature is one which has the highest depression in freezing point (ΔTf​).
The depression in freezing point is a colligative property and depends on the number of solute particles. Greater is the number of solute particles, greater is the depression in the freezing point.
1 molecule ofMgCl2​dissociates to produce 3 ions, whereas 1 molecule of other solutes dissociates to produce 2 ions.

thank you.
ankit singh
askIITians Faculty 614 Points
10 months ago

 

All the given solutions have the same molarity. The solution which has the lowest freezing point temperature is 0.1 M MgCl2.  
 
The solution which has the lowest freezing point temperature is one which has the highest depression in freezing point ( ΔTf). 
 
The depression in freezing point is a colligative property and depends on the number of solute particles. Greater is the number of solute particles, greater is the depression in the freezing point. 
 
1 molecule of MgCl2 dissociates to produce 3 ions, whereas 1 molecule of other solutes dissociates to produce 2 ions.

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