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Explain to what temperature would you have to heat Au(l) to cause its vapor pressure to become 314.3 mm Hg if its heat of vaporization as well as boiling point are 365.00 kJ/mol and 3080.2 K, respectively?
Explain how much energy (in kJ) is needed to heat 12.88 g of Cd(s) from 320.9 K its melting point to 632.0 K. The heat of fusion of Cd is 6.11 kJ/mol as well as the molar heat capacity of liquid Cd is 26.19J/mol*K.
What volume of 0.100 M sodium hydroxide is required to completely neutralize 50.0 mL of 0.100 M phosphoric acid
How many milliliters of 0.483 M HBr solution can be made from 38.0 mL of 8.00 M HBr solution?
Suppose you have a copper nitrate solid. You are not sure, however, if the solid is copper (I) nitrate, CuNO3, or copper (II) nitrate, Cu(NO3)2. You dissolve a 0.1015 gram sample of this solid in water and nitric acid and then dilute it to a final..
Explain why a solution of one mole of potassiium carbonate in one litter of water has higher boiling point than a solution of one mole of sodium bicarbonate
Describe an experiment using only hot and cold water that would enable you to verify that the heat capacity of your coffee cup calorimeter is about 1.0 x 10-1 J/oC
The minimum energy needed to eject an electron from a sodium atom is 4.41 * 10^-19 J What is the maximum wavelength of light, in nanometers, that will show a photoelectric effect with sodium
a vessel of volume 22.44 dm3 contains 2.0 mol h2 and 1.0 mole of n2 at 273.15 k initially. all the h2 reacted with
Liquid butane C4H10 , the fuel used in many disposable lighters, has delta Hfinal=-147.5 kj and a density of 0.579 g/ml . Use Hess's law to calculate the enthalpy of combustion in kJ/mol.
An experiment shows that a 248mL gas sample has a mass of 0.433g at a pressure of 745 mmHg and a temperature of 28 degrees C. What is the molar mass of the gas
When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule, how are the electrons distributed in the resulting molecular orbitals
Identify how precitipation reactions can be used in the water treatment and purification processes to help maintain a safe municipal water supply.
This phenomenon has some very practical applications in the power plants, particularly nuclear power plants. How does this help the overall efficiency of a nuclear power plant?
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