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07-02-2024
Physics

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A certain liquid X has a normal freezing point of -2.20 °C and a freezing point depression constant K = 3.94 °C kg-mol . A solution is prepared by dissolving some alanine (C₃H₇NO₂) in 300. g of X. This solution freezes at 8.7 °C. Calculate the mass of (C₃H₇NO₂) that was dissolved.

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