Sage-Tips

Which has highest freezing point urea?

1M urea solution has higher freezing point because lowering in freezing point temperature (ΔTf) will be less as compared 1M KCI solution which is and electrolyte.

Which has the maximum freezing point?

Pure water has the maximum freezing point. The addition of non-volatile solute such as NaCl decreases the freezing point of water.

What is the freezing point of CaCl2?

1,422°F (772°C)
Calcium chloride/Melting point

Which has the highest freezing point 1 M glucose 1’m NaCl 1’m CaCl2 1M alf3?

Explanation: glucose solution has highest freezing point bcause it has lowest delta Tf (the change in freezing point).

Which of the following has highest freezing point 1m NaCl?

glucose
Greater the value of n, greater is the van’t hoff factor. The lowest van’t hoff factor will result in the least depression in freezing point and hence that solution will have the highest freezing point. Hence, the correct option is D, glucose.

What is osmotic pressure among 1m urea and 1m NaCl which solution has highest value?

Option a) 1 M NaCl solution. The colligative ions in Nacl solution will exert the highest osmotic pressure due to a large number of ions.

What has the minimum freezing point?

The aqueous solution of 0.01M NaCl has a minimum freezing point.

What is the freezing point of urea?

271.4°F (133°C)
Urea/Melting point

Which has highest freezing point 1M glucose?

1 M glucose: For non electrolytes like glucose, vant hoff factor is 1. As 1 M NaCl produces more ions and thus lowers the freezing point to maximum. Thus 1 M glucose has higher freezing point.

Which has the highest freezing point 1M glucose?

What is the freezing point of NaCl and CaCl2?

NaCl, freezing point = 801; CaCl2, fp = 772 °C. Urea is not crystalline, high melting point is not expected. It is held together by

What is the KF*m value for NaCl and urea?

In the above formula ‘Kf*m’ value is same for both Urea , CaCl2 and NaCl. Thus, the only difference that we see is due to ‘i’, the Van’t Hoff factor. Now, i (urea) = 1i ( NaCl) = 2I (CaCl2) = 3Depression in freezing points are in the ratio of 1:2:3 .

What is the difference between urea and NaCl and CaCl2?

All the given solutions have same molarity. However, urea is non electrolyte (do not dissociate in aqueous solution) whereas NaCl, KCland CaCl2​are electrolytes (dissociate in aqueous solution).

What is the freezing point of aqueous solutions of solute?

When solute is added in a solvent ,the freezing point of the solution lowers compared to the pure solute..let ,here the solutions are aqueous solutions of respective solute…so the freezing point of these solutions are below 0 degree centigrade (freezing point of water at 1 atm pressure).