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Explain what is the change in the entrophy of the universe (delta S universe) for the combustion of one mole of methane gas at 298k? The unbalanced equation is- CH4(g) + 2O2(g) yields CO2(g) + 2H2O(l)
Which of the following factors increase the likelihood that a reaction will be spontaneous? 1. Energy is released in the form of heat. 2. A liquid is generated from a solid
at 700k the equilibrium constant kc for the gas phase reaction between no and o2 forming no2 is 8.7x 106 the rate
calculate the diameter of the ball. The density of water is ?w = 1.000 g/cm3, the density of styrofoam is ?foam = 0.0950 g/cm3 and the acceleration due to gravity is g = 9.81 m/s2.
State a paragraph with drawings in which you explain the key differences in source and sample "holder" and why the specific devices used in AAS are necessary.
What will the pH of the equivalence point be when 10.00 mL of .0200M Carbonic acid is fully titrated to the 2nd end point using .05 M NaOH?
Distinguish between the kinetics of a reaction and its process towards equilibrium. (Compare/contrast kinetics and equilibrium.)
a 0.7549g sample of a pure hydrocarbon burns in oxygen gas to produce 1.9061g of carbon dioxide and 0.3370g of water.a.
A groud state hydrogen atom absorbs a photon of light having a wavelength of 94.96 nm. It then gives off a photon having a wavelength of 95nm.
What is the specific heat of lead if it takes 97.5J to raise the temperature of a 75.0g block by 10.1 degress celcius?
what is the minimum amt of ethnaol needed to recrystallize a 2.0gsample of cmpd x?after recrystallization of the 2.0g
The volume of a gas is 2.50 L, measured at 1.00 atm. What is the pressure of the gas in mmHg if the volume is changed to 9.41 L
Explain A solid stainless steel cylindrical rod has a 1.5 inch diameter. The density of stainless steel is 7.70 g/cm^3. If a metalworker needs a 2.00 kg piece of stainless steel, how long a section must he cut off the rod
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