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A certain substance X has a normal boiling point of 116.6 °C and a molal boiling...
= 1.89 °C kg.mol. Calculate the boiling point of A certain substance X has a normal boiling point of 108.2 °C and a molal boiling point elevation constant K a solution made of 45. g of urea ((NH2), CO) dissolved in 700. g of X. Be sure your answer has the correct number of significant digits. 1°C x 6 ?
A certain substance X has a normal boiling point of 136.3 °C and a molal boiling point elevation constant K = 1.77 °C kg.mol. Calculate the boiling point of a solution made of 55.32 g of urea issolved in 850. g of X. Be sure your answer has the correct number of significant digits. 11 °C x s ?
The normal boiling point of a certain liquid X is 145.9 °C, but when 54.38 g of urea ((NH)CO are dissolved in 800 R of X, it is found that the solutio at 147.4 °C instead. Use this information to calculate the molal boiling point elevation constant KofX. Be sure your answer has the correct number of significant digits. I ac-mol kg x 5 ? Save For Later Sut Check
A certain substance X has a normal freezing point of 6.8 C and a molal freezing point depression constant Kf=7.51C kg x mol-1 . A solution is prepared by dissolving some urea ((NH2)2CO) in 600 of X. This solution freezes at 5.0 C . Calculate the mass of urea that was dissolved. Be sure your answer has the correct number of significant digits.
. Calculate the boiling point of A certain substance X has a normal boiling point of 141.7 °C and a molal boiling point elevation constant K = 1.21 °C kg.mol a solution made of 34.8 g of urea ssolved in 650. g of X. Be sure your answer has the correct number of significant digits. ic Dxno x 6 ?
A certain substance X condenses at a temperature of 121.3 °C. But if a 200. g sample of X is prepared with 20. g of urea ((NH2), CO) dissolved in it, the sample is found to have a condensation point of 124.3 °C instead. Calculate the molal boiling point elevation constar of X Round your answer to 2 significant digits. •c-mol. kg x 6 ?
A certain substance X melts at a temperature of -9.9 °C. But if a 250. g sample of X is prepared with 9.10 g of urea ((NH) CO dissolved in it, the sam is found to have a melting point of -12.0 °C instead. Calculate the molal freezing point depression constant K, of X. Be sure your answer has the correct number of significant digits. [°C mol'.kg x 5 ? Save For Later Sult Check
The normal boiling point of a certain liquid X is 145.40 °C, but when 69.1 g of glycine (C,H, NO,) are dissolved in 800. g of X the solution bolls at 147.7 °C instead. Use this information to calculate the molal boiling point elevation constant K, of X. Round your answer to 2 significant digits. * = 1 °C kg mol 6 X ?
The normal freezing point of a certain liquid X is 4.1 C , but when 27.84 g of urea ((NH2)2CO) are dissolved in 750 g of X , it is found that the solution freezes at -0.7 C instead. Use this information to calculate the molal freezing point depression constant Kf of X . Be sure your answer has the correct number of significant digits
8. The normal freezing point of a certain liquid X is 0.7 °C, but when 15. g of urea, (NH2)2CO, are dissolved in 250. g of X, it is found that the solution freezes at -5.8 °C instead. Use this information to calculate the molal freezing point depression constant Kr of X. Be sure your answer has the correct number of significant digits.