Answer:
Oh Okay
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Answer:
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Answer: 0.100 m 
Explanation:
Elevation in boiling point is given by:

 = Elevation in boiling point 
i= vant hoff factor
 = boiling point constant
m= molality
1. For 0.100 m 
  
, i= 3 as it is a electrolyte and dissociate to give 3 ions. and concentration of ions will be 
2. For 0.100 m 
  
, i= 2 as it is a electrolyte and dissociate to give 2 ions, concentration of ions will be 
3.  For 0.200 m 
, i= 1 as it is a non electrolyte and does not dissociate, concentration of ions will be 
4. For 0.060 m 
  
, i= 4 as it is a electrolyte and dissociate to give 4 ions. and concentration of ions will be 
Thus as concentration of solute is highest for 
 , the elevation in boiling point is highest and thus has the highest boiling point. 
 
        
             
        
        
        
Answer:
0.89M
Explanation:
Because moles of solute do not change, we can write
M1V1 = M2V2
M - molarity, V - volume of solution
2.0M*200mL = M2*450mL
M2 = 0.89 M