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Problem- A 1.1-L container of liquid nitrogen is kept in a closet measuring 1.1m by 1.2m by 2.0m. Assuming that the container is completely full, that the temperature is 20.7oC, and that the atmospheric pressure is 1.2atm, calculate the percent (by volume) of air that would be displaced if all of the liquid nitrogen evaporated. (Liquid nitrogen has a density of 0.807 g/mL.)
Be supposed to answer all parts thus I can get five stars
Histidine has three ionisable functional groups. Write the equilibrium equations for its three ionizations and assign the proper pKa for each ionization.
General Chemistry: Energy, Volume, Mass, Molarity, and Moles, Benzene is an organic solvent with the formula C6H6. It boils at 80.1 degrees celcius and melts at 5.5 degrees Celsius. Benzene's density is 0.88gm/ml; its heat of vaporization is 30.0 ..
double bond energy= 837 h single bond cl = 431 C single bond C = 347 C single bond H = 414 C single bond Cl 339 It says answer is -154 kJ but im not getting that
Depict the products of the subsequent reaction the acid-catalyzed dehydration of 1-pentanol to 2-pentene.
What pH will would measure for these solutions immediately? What would be the pH after the solutions equilibrate with the atmosphere
State the addition of 5.00 g of a compound to 250 g of naphthalene lowered the freezing point of the solvent by 0.780 K. Compute the molar mass of the compound.
Problem- Predict the signs of DH, DS and DG of the system from the following process at 1 atm (normal melting point of ammonia is -77.7°C): a) Ammonia melts at -60°C
What does the anhydrous ethyl alchol do to the cinnamic acid? Why is one drop of sulfuric acid added? Why are the distillation heads packed with steel wool? Why does the reflux take an hour and why does it need to cool before the final step? Why i..
Naturally occurring thallium has two isotopes, thallium-203 (202.9723442 amu) and thallium-205 (204.9744275 amu). The atomic mass of thallium is 204.38 amu. What is the percent of thallium-205
Give the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of lithium sulfide and copper (II) nitrate are mixed.
Explain the solubility of oxygen in water is 14.74mg/L at 0 Celsius and 7.03mg/L at 35 Celsius. Estimate the solubility at 50 Celsius.
Some ice cubes at 0 degrees C with a total mass of 379g are placed in a microwave oven and subjected to 750. W (750. J/s)of energy for 5.00 minutes. (Assume all energy of the microwave is absorbed by the water and no heat loss by the water.)
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