
O GASES, LIQUIDS, AND SOLIDS Using the Kf and Kb equations with electrolytes A certain liquid...
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
O ADVANCED MATERIAL Using the Kf and Kb equations with electrolytes A certain liquid X has a normal boiling point of 116.90 C and a boiling point elevation constant 1.88 kg mol. A solution is prepared by dissolving some urea (CHI NO) in 500 g of X. This solution boils at 120.5 °C. Calculate the mass of CH N, that was dissolved. Round your answer to 2 significant digits.
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JacoG O GASES LIQUIDS AND SOLIDS Using the Kf and Kb equations are dissolved in 100. g of X, for a certain substance X. When 4.611 g of urea ((NH2)CO) The molal boiling point elevation constant k) - 2.23 °C kgmol the solution boils at 97.2 °C. Calculate the boiling point of pure X1 Round your answer to 3 significant digits. ?
E GASES, LIQUIDS, AND SOLIDS Calculating and using the van't Hoff factor for electrolytes When 57.5 g of alanine (CH,NO) are dissolved in 1450. g of a certain mystery liquid X, the freezing point of the solution is 2.1 °C lower than the freezing point of pure X. On the other hand, when 575 g of potassium bromide are dissolved in the same mass of X, the freezing point of the solution is 29 °C lower than the freezing point...
= 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
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 ?
The normal freezing point of a certain liquid X is 7.20°C, but when 41.9g of ammonium chloride (NH4Cl) are dissolved in 800.g of X the solution freezes at 1.3°C instead. Use this information to calculate the molal freezing point depression constant Kf of X.Be sure your answer is rounded to the correct number of significiant 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.
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
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