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Consider 4.30 L of a gas at 365mmHG and 20 C. . If the container is compressed to 2.70L and the temperature is increased to 31 C, what is the new pressure,P2 , inside the container? Assume no change in the amount of gas inside the cylinder.
A 31.0-g sample of water at 270. K is mixed with 51.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
A chemist burns 160g of aluminum oxygen to produce aluminum oxide. She produces 260g of aluminum oxide. Write a balanced equation and calculate the theoretical and percent yield
The hydrogen is recovered as its most stable oxide. When the oxide was made to decompose completely it released 1.274x10^25 molecules of oxygen gas.
Assume further that as the normal fruit flies die off quickly, a population of the resistant flies increases geometrically (that is, 1, 2, 4, 8 ...) If a new generation occurs every 62 days, in how many days will the fruit fly population be restor..
1.013-g sample of ZnSO4•xH2O is dissolved in an aqueous solution of BaCl2. The pure BaSO4 precipitate is filtered out of solution, dried, and its mass is determined to be 0.8223 g. What is the value of x in ZnSO4•xH2O?
Nitrogen and oxygen do not react appreciably at room temperature, as illustrated by our atmosphere. But at high temperatures, the reaction below can proceed to a measurable extent.
A reaction is followed and found to have a rate constant of 3.36 x 10^4 M-1S-1 at 344 K and a rate constant of 7.69 M-1s-1 at 219K. Determine the activation energy for this reaction"
Calculate the molarity of a solution of glycerol made by dissolving 58.000 mL glycerol at 15 degrees Celcius in enough water to make 390.00 mL of solution.
What is the [Cu2+] concentration at 25 oC in the cell Zn(s)|Zn2+(aq, 1.0 M)||Cu2+(aq)|Cu(s)? The cell emf is 1.03 V. The standard cell emf
An atom is ionized so that it has only one electron. When the electron drops from the n = 4 shell to the n = 1 shell, an X-ray of wavelength 101.20 pm is emitted. What is the atomic number?
Draw the structure of each alkyl halide and determine if it is primary, secondary, or tertiary and if the halogen is on an aliphatic, benzylic
If 37.3 g of CO2 is produced in the reaction of C2H2 with O2 to form CO2 and H2O, how many grams of H2O are produced in this reaction.
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