Determine the freezing point depression of 2 kg of water when 2 mol salt is added to it. The kf of water is 1.86 degrees C/M. Show all your work.
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Ответ:
The freezing point depression is![1.86^0C](/tpl/images/1258/1095/37b6e.png)
Explanation:
Depression in freezing point is given by:
m= molality =![\frac{\text {moles of solute}}{\text {mass of solvent in kg}}=\frac{2mol}{2kg}=1m](/tpl/images/1258/1095/cbe81.png)
Thus freezing point depression is![1.86^0C](/tpl/images/1258/1095/37b6e.png)
Ответ:
10 miles per hour because 500 divided by 50 is 10