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A sample of nitromethane is sealed in a 15.0-L flask with oxygen gas, in the stoichiometric ratio indicated in the balanced equation above. The flask is heated to 100°C and the reaction is then allowed to go to 100% completion. If the total pressure of all gases in the flask at 100°C is 950. torr when the reaction is complete, what was the mass of nitromethane sample used?
The resulting solution has an osmotic pressure of 0.605 atm at 25 C. Assuming that the organic compound is a non-electrolyte, what is its molar mass
Porphyrin complexes are among the most important chelating agents in nature. Which statement is correct concerning these
a 54.7-g sample of aluminum at 95.0 oc is dropped into 35.0 g of water at 40.0 oc. what is the final temperature of the
How many L of solvent should be added to 0.46 L of a 0.28 M solution if you want a final concentration of 0.13 M.
The engine stops working when the temperature of the hot reservoir has been lowered to TC. Show that the amount of work done by the engine is W = C1(TH-TC) - C1TC ln (TH/TC).
A student mistakenly added concentrated (12M) HCl to a sample of unknown, instead of adding 6M hcl as directed. (1) at first, a large amount of light-colored precipitate formed
allowed to expand adiabatically against constant Pext = 10 atm. Compute the final T, ?U, and ?H for this process. Use Cv = 20.8 J/mol*K and assume the gas is ideal.
What is the volume in mL of 0.664 M HCl(aq) needed to neutralize the hydroxide ions present in 32.2 mL of 0.851 M NaOH(aq).
Cassify these compounds by whether they behave as strong acids, weak acids, strong bases, or weak bases in aqueous solution.
Calculate the change in internal energy of the following system: a balloon is cooled by removing 0.657 kJ of heat. It shrinks on cooling, and the atmosphere does 384J work on the balloon.
Battery acid is 35% sulfuric acid in water and has a density of 1.29g/ml. What is the mass of sulfuric acid in 1.00L of battery acid?
Give at least 5 members (ions) of the same isoelectronic series as neon. Arrange them in order of smallest ionic radius to largest ionic radius.
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