Ethanol (CH3CH2OH) has a normal boiling point of 78.3℃ When subjected to a pressure of 3.00...
A) The normal boiling point of ethanol, CH3CH2OH, is 78.4 ∘C. When 8.45 g of a soluble nonelectrolyte is dissolved in 100.0 g of ethanol at that temperature, the vapor pressure of the solution is 7.40×102torr. What is the molar mass of the solute?
the normal boiling point of ethanol is 78.3 deg C and its molar enthalpy of vaporization is 38.56 Kj/mol. what is the change in entropy in the system in J/k when 97.2 grams of ethanol at 1 atm condenses to a liquid at the normal boiling point?
Find the temperature at which ethanol boils on a day in the mountains when the barometric pressure is 547 mmHg. (Given: The heat of vaporization of ethanol is 39.3 kJ/mol; the normal boiling point of ethanol is 78.3°C.)
en e Text 34.6°C 78.3°C Area 100°C ent Sharing Normal boiling point Diethyl ether tings Vapor pressure (tore) Ethyl alcohol (ethanol) Dols Ethylene glycol 20 80 100 40 60 Temperature (°C) Based on the figure above, the boiling point of water under an external pressure of 0.0658 atm is °C. O O O O O
HQ12.13 Homework. Unanswered What is the mass percent of ethanol (CH3CH2OH) if 0.0750 moles of ethanol is added to 0.350 kg of water? Numeric Answer: Unanswered 3 attempts left - Submit
Which of the following compounds has the highest boiling point? 34.6°C 78.3°C 100°C 800 760 Normal boiling point 600 Vapor pressure (tor) Diethyl ether Water 400 Ethyl alcohol (ethanol) 200 Ethylene glycol 0 20 80 100 40 60 Temperature (°C) Select one: a. NH3 O b. H₂S о с. НСІ O d. H₂O According to the MO theory, which of the following molecules should not exist? Select one: a. Hez b. Hez c. H2 d. All of the above
Based on the figure above, the boiling point of diethyl ether
under an external pressure of 0.590 atm is ________°C.
a 20
b 0
c 60
d 30
34.6°C 78.3 °C 100 °C 800 760 Normal boiling point 600 Vapor pressure (tor) Diethyl ether Water 400 Ethyl alcohol (ethanol) 200 Ethylene glycol 0 0 20 80 100 40 60 Temperature (°C)
2. What is the change in entropy in the system when 4.50g of ethanol (CH3CH2OH) condenses to liquid at its normal boiling point of 78°C? The heat of vaporization for ethanol is 38.56kJ/mol.
The boiling point of water at 1 atm is 100°C and the boiling point of ethanol at the same pressure is 78°C. Which one has the higher vapour pressure at a particular temperature? Select one: They will have the same.vapour pressure Ethanol Water Check
20.Ethanol has a heat of vaporization of 38.56 kJ/mol and a normal boiling point of 78.4 °C. what is the vapor pressure of ethanol at 15.0 °C? 4 pts)