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Find the change in entropy (S) for the system, surroundings and universe for the conversion of 1 mol of ice at 0 degrees C and 1.00 atm to 1.0 mol of steam (vapor) at 100 degrees C and 0.50 bar. Useful data might be: change in enthalpy of melting=6.0 kj/mol; change in enthalpy of vaporization=40.6 kj/mol; cp(h2O (liquid))=75.3 J/mol K; the density of ice is 0.917 g/cm^3 and the density of water is 1.00g/cm^3
What is the pH of Sodium Acetate solution before the HCL is added and after the HCL is added?
If 42.0 g of CO and 27.0 g of H2O are placed in a 5.0 L flask with 132 g of CO2 and 6.0 g of H2 and allowed to reach quilibrium, what will the concentration of CO be when the system finally reaches equilibrium?
Polyisobutylene (PIB) is equilibrated in propane vapor at 35 oC. At this temperature, the saturated pressure (p10) of propane is 9050 mm Hg and its density is 0.490 g/cm3
What is the mole fraction of ethanol in a solution made by dissolving 14.6 g of ethanol in 53.6 g of water?
a reaction has H degree = -14.7 kg and S degree of 35.7 J/k x mol . the reation will be one of the following, Exergonic or have a very small keq or have a positive G degree
an airplane is pressured to 650 mm Hg, which is the atmospheric pressure at a ski resort at 1.30 * 10^4 ft altitude. If air is 21% oxygen,
Determine the mass of Al is needed to combine with 3.077 kilo grams of Ammonium per chlorate NH 4 ClO 4 for this reaction? express your answer in units of g
The decomposition of potassium chlorate (KClO3) is used as a source of oxygen in the laboratory. How much potassium chlorate is needed to produce 20.7 mol of oxygen?
Reactions within equations and properties of acidity, A reaction occurs for each of the following below. How do you differentiate between the different driving forces? (a driving force can either be the transfer of electrons; the formation of a pr..
If you want to dope GaAs to make an n-type semiconductor with an element to replace Ga, which of the elements below would you pick
Identify the qual 1 cation that is confrimed present in a reference solution by the formation of a precipitate? by the color of a soluble complex ion?
atomic absorption spectrometer was used with the method of standard additions to determine the concentration of cadmium in a sample of an industrial waste stream. For the addition, 10 uL of a 1000 ug/mL Cd standard was added to 10 mL of solution.
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