Assume that the freezing point and melting point of alcohol, which are -117º C and 78º C respectively, are defined as 0º A and 100º A respectively. What is the freezing point of water in ºA?
Assume that the freezing point and melting point of alcohol, which are -117º C and 78º...
Melting Point of p-dichlorobenzene 75.9 Melting Point of acetamide 53.2 degrees C Melting Point of solid mixture 53.8 degrees C Boiling Point of acetone 55.8 degrees C Boiling Point of ethyl alcohol 77.6 degrees C Boiling Point of acetone/ethyl alcohol mixture 72.7 What can you conclude about the melting points of pure and impure solids?
What is the freezing point of an alcohol in °C to the nearest degree if its heat of fusion(AHlusº) +9.37 kJ/mol and its entropy of fusion ASfusº = 50.6 J/K.mol.
What is the freezing point of a solution of ethyl alcohol, that contains 31.3 g of the solute (C2H5OH), dissolved in 800 g of water?
Choose the following statements which best identify the differences between melting and freezing. Select all that apply: Melting point is not affected by the attractive forces in a solid while freezing point is. Melting is the change from a solid to a liquid, while freezing is the change from a liquid to a solid. O Melting has a positive AH value while freezing has a negative AH value. O Melting is exothermic while freezing is endothermic.
Choose the following statements which best identify the differences between melting and freezing. Select all that apply: Melting point is not affected by the attractive forces in a solid while freezing point is. Melting is the change from a solid to a liquid, while freezing is the change from a liquid to a solid. O Melting has a positive AH value while freezing has a negative AH value. O Melting is exothermic while freezing is endothermic.
Ethyl alcohol has a boiling point of 78.0 ˚C, a freezing point of -114 ˚C, a heat of vaporization of 879 kJ/kg, a heat of fusion of 109 kJ/kg, and a specific heat of 2.43 kJ/kg·K. How much energy must be removed from 0.689 kg of ethyl alcohol that is initially a gas at 78.0 ˚C so that it becomes a solid at -114 ˚C?
Ethyl alcohol has a boiling point of 78.0 ˚C, a freezing point of -114 ˚C, a heat of vaporization of 879 kJ/kg, a heat of fusion of 109 kJ/kg, and a specific heat of 2.43 kJ/kg·K. How much energy must be removed from 0.683 kg of ethyl alcohol that is initially a gas at 78.0 ˚C so that it becomes a solid at -114 ˚C?
Weert Home Data Shee Experiment 2 Data Shoot Table 2. Melting/Freezing Point Temperature Ranges Hydrocarbon Freezing or Melting Point Range Freezing or Melting Point Paraffin wax (W 1-Octadecene (O)
The experimentally measured freezing point of a 1.50 m aqueous solution of CaCl2 is -6.70°C. The freezing point depression constant for water is Kf = 1.86°C/m. Assume the freezing point of pure water is 0.00°C. The experimentally measured freezing point of a 1.50 m aqueous solution of CaCl2 is -6.70°C. The freezing point depression constant for water is Kf = 1.86°C/m. Assume the freezing point of pure water is 0.00°C. What is the predicted freezing point if there were no...
A freezing point depression experiment was conducted using tert-butyl alcohol as the solvent instead of water The freezing point of pure tert-butyl alcohol is 27C and Kf=9.1C/mol. To 25g of tert-butyl alcohol was added 0.70 g of a non-electrolyte solute (i.e. sugar). The solution was cooled and the new freezing point was determined to be 20C. 1. What is the molar mass of the unknown non-electrolyte solute? 2. In a similar experiment, MgCl2 (MW= 95.2 g/mol) solute was added to...