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The standard heat of formation of OF2 gas is 24.5 kJ/mol. Calculate the average O-F bond energy given the following average bond energies:
O=O 498 kJ/mol F-F 159 kJ/mol
A 0.4647-g sample of a compound known to contain only carbon, hydrogen, and oxygen was burned in oxygen to yield 0.8635 g of CO2 and 0.1767 g of H2O.
Given the following partial pressure for the gases: Pnz=0.78atm Po2=0.19atm Ptrace=0.05atm Determine the total pressure for the mixture.
If 5.28 x 10^3 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?
A quantity of Oxygen (g is originally at 4.75 atm and 26 degree Celsius in a 5.00 Litre container is transferred into the same container determine the total pressure in the new container?
If a balloon containing 1,200 L of gas at 25C and 760 mm Hg pressure ascends to an altitude where the pressure is 380 mm Hg and the temperature is 54C, the volume will be.
a 720-mL sample of water was cooled from 60 degrees celsius to 10 degrees celsius. How much heat was lost?
What is the pH of a buffer solution that is 0.15 M chloroacetic acid and 0.10 M sodium chloroacetate? Ka = 1.3x10^-3.
Assume a density of 1.08g/mL for the solution. A)Find molarity of solution B)Find molality of solution C)Calculate mass percent of solution
What is the pressure in a gas container that is connected to an open end u tube manometer if the pressure of the atmosphere is 742 torr and the level of mercury in the arm
How many grams of NaN3 are required to produce 15.0 ft3 of nitrogen gas if the gas has a density of 1.25 g/L.
EDTA solution to reach the end point in a titration. What mass (in milligrams) of CaCO3 (FW = 100.09 g/mol) will react with 1.85 mL of the EDTA solution?
The exothermic chemical reaction CO(g) + H2O(g) CO2(g) + H2(g) has Kc = 0.034 at 25°C. We currently have a flask containing all the components listed in this equation at equilibrium at 25°C. Subsequently, we will either (1) add some H2 to the flas..
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