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25-04-2024
Physics

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Pure benzene freezes at 5.50°C. A 0.9905 gram sample of an unknown nonelectrolyte is dissolved in 15.388 grams of benzene and this solution freezes at 2.90°C. What is the molar mass of the unknown?
K = 5.12 °C/m
ΔT = I KfM

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