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How many grams of a hypothetical salt X4Y5 of molar mass 68.00g/mol would need to be added to 611.00 grams of water to lower the

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How many grams of a hypothetical salt X4Y5 of molar mass 68.00g/mol would need to be added to 611.00 grams of water to lower the freezing point of water to minus 13.1 degrees C ? Use 1.853 degrees C/m for Kf of water. Answer with the unit of g. Your Answer: Answer units

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