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Calculate the change in internal energy of the following system: a 100.0- bar of gold is heated from 25 to 50 during which it absorbs 322 of heat. Assume the volume of the gold bar remains constant.
A syringe containing 1.55ml of oxygen gas is cooled from 95.3C to 0.0C. What is the final volume of oxygen gas
If, in a certain experiment, over a specific time period, 0.0055 mol PH3 is consumed in a 2.3 L container during each second of reaction,
A radioactive element has a half-life of 2.2 hours. How many hours will it take for the number of atoms present to decay to one-sixteenth of the initial value? Show your calculations
A sample of pure NO2 is heated to 334 degree C at which temperature it partially dissociates according to the equation 2NO2(g)-->2NO(g)+O2(g)
Calculate the energy of an ultraviolet photon of wavelength 106nm and that of an infrared photon with a wavelength
Suppose you wanted to find out how many milliliters of 1.0 M AgNO3 are needed to provide 169.9 g of pure AgNO3.
On the basis of your data what conclusion may be made regarding the separating ablility of simple and fractional distillation? comment on how well your results compare with what might be expected using your actual data below
Write the cell reaction that occurs if the two Pt electrodes are shorted together. What is the standard potential of the cell?
C3H8(g) + 5 O2(g) ? 3 CO2(g) + 4 H2O(g) Calculate the overall enthalpy change for this reaction using standard bond enthalpies.
How are the opposing pathways of glycolysis and gluconeogenesis prevented from extensive
C2H4+3O2= 2CO+2H2O if 2.70 mol C2H4 is reacted with 6.30 mol O2 a. identify the limiting reagent
What volume of hydrogen can be produced at 22.0C and 1.01atm pressure by the reaction of 25.0ml of 2M HCL with 0.3g Zn?
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