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What is the freezing point (C) of a solution prepared by dissolving 6.3 g of (NH 4 ) 2 SO 4 (formula weight = 132

What is the freezing point (C) of a solution prepared by dissolving 6.3 g of (NH₄)₂SO₄ (formula weight = 132 g/mol) in 114 g of water? The molal freezing point depression constant for water is 1.86C/m. Assume complete dissociation in solution.

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