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Consider 4.50 of a gas at 365 and 20. If the container is compressed to 2.90 and the temperature is increased to 35, what is the new pressure, inside the container? Assume no change in the amount of gas inside the cylinder.
"Given the following standard reduction potentials, E°redAl3+/Al = -1.66 V. E°redCr3+/Cr = -0.74 V.
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At0?C, the volume of the gas is 248 mL. To what temperature must the gas be heated to occupy a volume of 479mL.
What volume of 2M H2S , in L, is required to react with excess O2 to produce enough SO2 to fill a cylinder that is 51ft long and has a diameter of 7ft at a pressure of 464 torr and 30 AC?
What is the change in internal energy (in J) of a system that releases 675 J of thermal energy to its surroundings and has 5.60 * 10^2 cal of work done on it?
Osmium has a density of 22.6 g/cm3. What volume would be occupied by a 21.8 g sample of osmium?
A solution is 0.0100 M in Pb2+ ions. If 0.103 mol of solid Na2SO4 is added to 1.00L of this solution (with negligible volume change), what percent of the Pb2+ ions remain in solution.
Calculate ?G° for the reaction of ammonia with fluorine. 2NH3(g) + 5F2(g) ? N2F4(g) + 6HF(g) Substance: NH3(g) F2(g) N2F4(g) HF(g) ?G° f (kJ/mol): -16.4 0 79.9 -275.4 179.1 kJ -179.1 kJ 1539.7 kJ -1539.7 kJ None of these choices is correct.
Household vinegar is aqueous 5.00% acetic and CHC2H3O2 SOLUTION(by mass), if the density is 1,01g/ml calculate the mole fraction, molarity and molality.
A sample of an unknown gas effuses in 10.5 min. An equal volume of H2 in the same apparatus under the same conditions effuses in 2.07 min. What is the molar mass of the unknown gas?
A solution is prepared by dissolving 11.60 g of a mixture of sodium carbonate and sodium bicarbonate in 1.00 L of water. A 300.0- cm^3 sample of the solution is then treated with excess HNO3 and boiled to remove all the dissolved gas
Phenol is a weak organic acid with Ka=1.0x10^-10. How many grams of phenol do you need to add to 500. mL of water to make a pH=5.75 solution
The temperature of the water was 22 Celsius and thebarometric pressure was 735.8 mm Hg. What is the vapor pressure of the water? What is the pressureof dry hydrogen gas?
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