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The molar heat of fusion of aluminum metal is 10.79 kJ/mol, whereas its heat of vaporization is 293.4 kJ/mol.
What quantity of heat would be required to vaporize 1.52 g of aluminum at its normal boiling point?
Ag electrode in 1.0 M Ag + (aq) and Cu electrode in 1.0 M Cu 2+ (aq). What is the cell potential when the solutions are altered, so [Ag+] = 1.25 M and [Cu 2+] =0.25 M
Ethylene is supplied by a 60.9-L gas cylinder initially at 2200.0 psig and 25.0°C. Once leaving the cylinder, a regulator reduces the pressure to 15.0 psig, and a valve allows 1.000 mL/s of ethylene at 25.0°C to flow into the reactor
If the density of ethanol at room temperature is 0.789g/ml, calculate how many grams of ethanol would be required to fill a typical 13.0 gallon car gas tank. How many grams of glucose would be required to fill the gas tank
Calculate the percent ionization of phenol (HC6H5O) in solutions of each of the following concentrations (Ka = 1.3e-10.) (a) 0.181 M % (b) 0.482 M % (c) 0.733 M %
Write a balanced chemical equation for the neutralization reaction upon which this titration is based, and indicate clearly which atom is being protonated
What is the change in entropy for the system, surroundings, AND total for the following processes
An optically active D-aldopentose produced on optically inactive alditol upon treatment with NaBH4. When this aldopentose was subjected to a Ruff degradation, a D-aldotetrose was generated.
Identify which will be warmer if you heat equal masses of gold and iron starting at room temperature with 1 kJ of energy
Describe the three types of models (layer sequence drawings, computer graphics, balls and sticks) used for visualizing the three dimensional structure of unit cells
what is the ground-state electron configuration of
what is the redox reaction for MnO4- + 8H+ +5Fe2+ ______ Mn2+ + 5Fe3+ + 4H2O and which ion is oxidized and which one is reduced
A solution of 120 mL of 0.150 M KOH is mixed with a solution of 280 mL of 0.250 M NiSO4. How many grams of the precipitate can be formed?
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