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1. A 4.00 L vessel contains 2.40 moles H2O, 1.00 mole CO2, 2.40 moles of CO and 1.00 mole H2 At equilibrium . Determine how many moles of carbon dioxide should be added to the system to bring the equilibrium carbon monoxide concentration to 0.743 mol/L?
A major component of gasoline is octane (C8H18) . When octane is burned in air, it chemically reacts with oxygen gas (O2) to produce carbon dioxide (CO2) and water (H2O).
What is the [H3O+] of a solution that is 0.0100 M in HOCl
An oxygen molecule having the average velocity at 300K is released from the earth's surface to travel upward. If it could move without colliding with other moleucules, how high would it go before coming to rest. How high could it go if it had the ..
What is the concentration of the HNO3 solution? (b) How many moles of NaOH were in excess after the first addition?
Several rate constants were measured for a particular reaction at several temperatures. It was found that k = 0.0173 at 923 K, and k = 0.00919 at 773 K. What is the activation energy, Ea , for this reaction?
A sample weighing 25g starts at 99 degrees celsius. It is put in a calorimeter containing 100g water. The water temperature begins at 20 degrees and both water and sample reach equilibrium at 32 degrees. What is the specific heat of the sample?
Radium-226 (atomic mass = 226.025402 ) decays to radon-224 (a radioactive gas) with a half-life of 1600 years. what colume of radon gas is produced by 25.0 g of radium in 5.0 days?
it absorbs 32.60 kj of heat from its surroundings. what is its final temperature in C (specific heat .9930 J g C for Al)
14.0 moles of gas are in a 6.00 L tank at 22.6 C. Calculate the difference in pressure between methane and an ideal gas under these conditions.
the advantages and disadvantages of using methanol, ethanol and water as a solvent for reactions with sodium borohydride?
Calculate the amount of isopentyl acetate that should be present in the reaction mixture at equilibrium based on 300 mmol of acetic acid and 150 mmol of isopentyl alcohol as starting quantities. Use equilibrium constant of 4.2 for this calculation..
Calculate the concentration of NO3- ion remaining in solution.
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