The freezing point (Tf) for t-butanol is 25.50°C and Kf is 9.1°C/m. Usually, t-butanol absorbs water on exposure to the air. If the freezing point of a 12.9-g sample of t-butanol is measured as 24.59°C, how many grams of water are present in the sample?

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  1. The freezing point (Tf) for t-butanol is 25.50°C and Kf is 9.1°C/m. Usually, t-butanol absorbs water on exposure to the air. If the freezing point of a 12.9-g sample of t-butanol is measured as 24.59°C, how many grams of water are present in the sample?
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