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Which of the following would be a correct ranking of the following gases based on rate of effusion at STP? N2, O2, NO, NO2, N2O, N2O3
how much water would be needed to completely dissolve 1.78 of the gas at a pressure of 730 and a temperature of 27? a
Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH, and the concentrations of all species
Explain the role of a spin vane or boiling stones that are added to a liquid that is to be heated or distilled
Given the following partial pressure for the gases: Pnz=0.78atm Po2=0.19atm Ptrace=0.05atm Determine the total pressure for the mixture.
A cooling system is designed to maintain a refrigerator at -10 degrees C in a room at 25 degrees C. If 3x10^4 J of heat leaks into the refrigerator every minute, and the system works at 60% of it's maximum thermodynamic efficiency, what is the pow..
A 2.42-L flask is filled with propane gas (C3H8), at 1.00 atm and -13.0°C. What is the mass of the propane in the flask.
Barium chromate dissolved upon treatment with nitric acid forming an orange solution. Write a net ionic equation to represent the overall reaction that occurs.
What fraction of the spherical atomic volume is occupied by the nucleus? What fraction of this atom's mass is contributed by its nucleus?
It requires 20.65 mL of 0.3000 M NaOH solution to titrate both acidic protons in 40.00 mL of the tartaric acid solution Write the net ionic equation.
what is the pressure of H2 gas collected over water when the total pressure is .980 atm at 25 degrees celsius.
how many grams of water can be cooled from 45 to 18 by the evaporation of 62 of water? the heat of vaporization of
The initial volume of the balloon is 5.00 , and the pressure is 760. The balloon ascends to an altitude of 20, where the pressure is 76.0 and the temperature is 50. What is the new volume, of the balloon in liters, assuming it doesn't break or leak
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