Heat of sublimation for carbon dioxide
Calculate the amount of heat required to completely sublime 88.0 g of solid dry ice CO2 at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 kJ/mol.
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Sodium vapor lamps, used for public lighting, emit yellow light of wavelength 580 nm. How much energy is emitted by an excited sodium atom when it generates a photon? Answer in units of J.
Calculate the total pressure (in atm) of a mixture of 0.0270 mol of helium, He, and 0.0200 mol of oxygen, O2, in a 4-L flask at 20°C. Assume ideal gas behavior.
if a 210 mg piece of gold (density=19.32 b/cm^3) is hammered into a sheep measuring 2.3*10 ft. what is the average thickness of the sheet in meters?
An engine block with a surface area measured to be 0.90m2 generates a power output of 55 kW with a net engine efficiency of 35%.
Using the values for the mass of p-dichlorobenzene, its molar mass (147.01 g/mol), and the mass of cyclohexane solvent that you used, calculate and enter the molality of the p-dichlorobenzene solution to three significant digits, e.g. 0.484
2.00 x10^2 mL of .744 M HCl is mixed with 2.00 x 10^2 mL of .372 M Ba(OH)2. how many moles of water are produced in the reaction
A piece of P-type silicon is connected to ground on its right side. On its left side there is a metal electrode which is separated from the silicon by a thin layer of air. The potential of the left electrode is V>0V. Because of the positive
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