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Equal amounts of heat are added to equal masses of aluminum and copper at the same initial temperature. Which metal will have the higher final temperature, and how many times greater will that temperature change be than the temperature change of the other metal?
the following standard gibbs energy of formation values in kJ/mol: CH4, 50.7; H2O, -228.6; CO2, -394.4 calculate the standard free energy change for the combustion of CH4
The energy levels of a Helium Ion, He+, may be calculated from the Bohr Theory using z = 2 for the atomic number, En = -1312.04 Z2/n2 or En=-5248.16/n2 (kJ mol-1) for n=1, 2,3,.... Calculate the first 4 energy levels of He+
36.8mL of hydrogren gas, from the reaction of a piece of magnesium ribbon with hydrochloric acid, are collected over water in a eudiometer. The temp of the hydrogen gas at 21C, and the atmospheric pressire is 768mmHg.
if acetic acid is the only acid that vinegar contains ka 1.8 x 10- 5 calculate the concentration of acetic acid in the
Which of the following statements concerning the complete hydrolysis of fats and oils is correct. fats produce more fatty acids per molecule than do oils
Calculate the volume of a sample of carbon monoxide at -60.6°C and 801 torr if it occupies 29.4 L at 372 K and 189 torr.
The solubility of N2 in blood at 37 oC and at a partial pressure of 0.80 atm is 5.6 X 10-4 mol/L. A deep-sea diver breathes compressed air with the partial pressure of N2 equal to 3.1 atm. Assume that the total volume of the blood in the body is 5..
Explain a water sample is found to contain the pollutant chlorofluorobenzene CFB with a concentration of 25 ppb (by mass). Explain what volume of this water contains 7.50E2 mg of CFB presume a density of 1.00 g/mL)
Consider a reaction A+B=C has a rate = k[A][B]. The reaction rate is an experiment is carried out where [A]0=[B]0=1.00 M as well as the reaction rate is 0.24 Ms-1. Subsequent to 2.8 min, [A] = 0.60 M, explain what is the reaction rate then
the combining of the fragments which remain after the loss of an oxygen from the carboxylic acid and two hydrogens from ammonia or an amine.
Suppose a mixture of 4.0 moles of O2 and 2.0 moles of H2 is placed in a sealed evacuated container made of a perfect insulating material at 25 degrees Celsius. The mixture is ignited with a spark also it reacts to form liquid water. Determine the ..
For the above current at 3.01 V, how much electrical energy (in kw-hr) is consumed in the production of 1 kg of aluminum? (A kW-hr is 3.6 x106 J.)
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