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massa etilena glikol = 124 gram
Mr etilen glikol,= 62
mol etilen glikol = 124/62 = 2 mol
molal etilen glikol = 2/1 = 2 molal
ditanyakan tentukan titik beku nya
Delta Tf = m x Kf
Delta Tf = 2 x 1,86
Delta Tf = 3,72 derajad celcius
Titik bekunya adalah - 3,72 derajad celcius