A certain substance X condenses at a temperature of 113.6 °C. But if a 350. g sample of X is prepared with 25.1 g of urea ((NH, CO) dissolved in it, the sample is found to have a condensation point of 116.4 °C instead. Calculate the molal boiling point elevation constant K, of X. Round your answer to 2 significant digits. IC- mol" kg

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A certain substance X condenses at a temperature of 113.6 °C. But if a 350. g sample of X is prepared with 25.1 g of urea
(NH2)¸CÓ) dissolved in it, the
2
sample is found to have a condensation point of 116.4 °C instead. Calculate the molal boiling point elevation constant K, of X.
Round your answer to 2 significant digits.
- 1
II °C- mol
· kg
x10
Transcribed Image Text:A certain substance X condenses at a temperature of 113.6 °C. But if a 350. g sample of X is prepared with 25.1 g of urea (NH2)¸CÓ) dissolved in it, the 2 sample is found to have a condensation point of 116.4 °C instead. Calculate the molal boiling point elevation constant K, of X. Round your answer to 2 significant digits. - 1 II °C- mol · kg x10
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