10gr urea (mr=60) dalam 125 gr air,kfair=1,80°c/m tentukan titik beku larutan

□tf = g/mr × 1000/p (gram) × kf
□tf = 10/60 ×1000/125× 1,80
□tf = 0,16 × 8 × 1,80
□tf = 1,28. 1,80
□tf = 2,304 °C

catatan : □ = delta

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