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The volume of 1.00 mol of ammonia gas at 1.15 atm of pressure is gradually decreased from 90.5 mL to 34.9 mL. What is the final pressure of ammonia if there is no change in temperature?
Mixtures of helium and oxygen are used in scuba diving tanks to help prevent "the bends". For a particular dive, 18.9 L of oxygen gas at 25.0oC and 1.25 atm, and 7.58 L of helium gas at 25.0oC and 1.13 atm were pumped into a tank with a volume of ..
A gas at 550 torr and 1.2 liters is allowed to expand to 4.3 L. What is the final pressure of the gas? in mmHg or torr.
The Heisenberg uncertainty principle also holds for energy and time, two complimentary variables. How well can we know the energy of molecular excited states with lifetimes of a)10 micro seconds; b) 10 ns and c) 10 ps.
Suppose that you first titrated 25.0 mL of 0.500 M HCL with 0.500M NaOH and then 25.0 mL of 0.500 M of a weark acid HA with 0.500M NaOH. How would the titration curves compare at 10 or 15 ml of NaOH beyond the equivalence points? Explain.
Strontium-90 is present in the fallout produced by nuclear weapons testing in the atmosphere. Sr-90 is potentially dangerous to humans and animals because it substitutes chemically for calcium in bones and has a half-life of almost 29 years.
V = 4.55 mL at 147 atm. What is the pressure if the volume changes to 10.0 mL?
The other criterion is very basic and relates to whether simple or fractional is selected
Compare as well as discuss the size of an ion with respect to the covalent atomic radii of the corresponding atom. Do this discretely commentating on comparison of both the metal atom and its corresponding cation also the nonmetal atom compared to..
For the following reaction, 5.21 grams of nitrogen gas are allowed to react with with 5.51 grams of hydrogen gas.nitrogen (g) + hydrogen (g) ammonia (g),What is the maximum amount of ammonia that can be formed.
how many grams of sodium sulfate should be added to how many grams of sulfuric acid to give 1.00 l of buffer with ph
Calculate the vapor pressure of a solution made by dissolving 75.9 g of urea (molar mass= 60.06 g/mol) in 197.5 mL of water at 35C. (Hint: the vapor pressure of pure water at 35C is given
The molar mass of a compound is 360. If the empirical formula is NO, what is the molecular formula
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