= 4.47 °C-kg-mol. Calculate the freezing point of a A certain liquid X has a normal...
The normal freezing point of a certain liquid X is 6.60 °C, but when 27. g of potassium bromide (KBr) are dissolved in 300. g of X the solution freezes at 4.9 °C instead. Use this information to calculate the molal freezing point depression constant K, of X. Be sure your answer is rounded to the correct number of significiant digits. Ķ, = 0 °C kg x s ?
A certain liquid X has a normal freezing point of 7.80 °C and a freezing point depression constant K,=3.03 °C kg mol. Calculate the freezing point of a solution made of 15.6g of urea (CH N,0) dissolved in 200. g of X. Be sure your answer is rounded to the correct number of significant digits. O°C
the solution freezes at The normal freezing point of a certain liquid X is - 2.80 °C, but when 22. g of benzamide (C,H,NO) are dissolved in 200. g of - 7.4 °C instead. Use this information to calculate the molal freezing point depression constant K, of X. Round your answer to 2 significant digits. *, - more 09
A certain liquid X has a normal freezing point of 5.50 °C and a freezing point depression constant K =4.39 °C-kgmol. A solution is prepared by dissolving some urea (CH4N20) in 800. g of X. This solution freezes at 3.6 °C. Calculate the mass of CH4N20 that was dissolved. Be sure your answer is rounded to the correct number of significiant digits. x 6 ?
C kg mol Calculate the boiling point of a solution A certain liquid X has a normal boiling point of 96.80 C and a boiling point elevation constant k-1.23 made of 221.g of barium hydroxide (Ba(OH)2) dissolved in 800. g of X. Round your answer to 5 significant digits. Dec X 5 ?
= ADVANCED MATERIAL = Using the Kf and Kb equations with electrolytes A certain liquid X has a normal boiling point of 138.40 °C and a boiling point elevation constant k = 1.52 °C kg-mol. Calculate the boiling point of a solution made of 62.g of potassium bromide (KBr) dissolved in 300 g of X. Round your answer to 5 significant digits. 1 °C
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.
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.
ADVANCED MATERIAL Using the Kland Kb equations with electrolytes A certain liquid X has a normal freezing point of 2.60 °C and a freezing point depression constant k, = 5.29 °C kg-mol . A solution is prepared by dissolving some ammonium chloride (NHCl) in 800. g of X. This solution freezes at 0.9 °C. Calculate the mass of NHCl that was dissolved. Round your answer to 2 significant digits. Explanation Check