CBSE Class 12-science Answered
Calculate the freezing point depression expected for 0.0711m aqueous soln. of Na2SO4. If this solution
actually Freezes at -0.320?c, what would be the value of van’t Hoff Factor (Kf For water is 1.86kkgmol-1
)U
Asked by Monikavyas097 | 29 Jun, 2021, 09:27: AM
Depression of freezing point is calculated by-
![increment straight T subscript straight f space equals straight i cross times straight m cross times straight K subscript straight f
0 minus left parenthesis negative 0.320 right parenthesis equals straight i cross times 0.0711 cross times 1.86
straight i equals fraction numerator 0.0711 cross times 1.86 over denominator 0.320 end fraction
straight i equals 0.413
Van apostrophe straight t space hoff space factor equals 0.413](https://images.topperlearning.com/topper/tinymce/cache/d2205d445e70b2b323d7f24277b088f3.png)
Answered by Ravi | 02 Jul, 2021, 18:31: PM
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