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The small bubbles that form on the bottom of a water pot that is being heated (before boiling) are due to dissolved air coming out of solution.Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.2 of water upon warming from 25 to 50 . Assume that the water is initially saturated with nitrogen and oxygen gas at 25 and a total pressure of 1.0 . Assume that the gas bubbles out at a temperature of 50 . The solubility of oxygen gas at 50 is 27.8 at an oxygen pressure of 1.00 . The solubility of nitrogen gas at 50 is 14.6 at a nitrogen pressure of 1.00 . Assume that the air above the water contains an oxygen partial pressure of 0.21 and a nitrogen partial pressure of 0.78 .
A 55.0-{ g} piece of ice at 0.0 C is added to a sample of water at 8.0 C. All of the ice melts and the temperature of the water decreases to 0.0 C.
Determination of the partial pressures of the gases - Find the partial pressure of each of these gases in the final product mixture.
particular sample of pure iron requires 0.595 kJ of energy to raise its temperature from 25oC to 45oC. The specific heat of iron is 0.45 J/g oC. What must be the mass of the sample?
A sample of hydrogen occupies a volume of 1.20 liters at a pressure of 425 kilapascals. If the temperature of the gas is constant, what would the new volume of the gas be at 615 kilapascals?
If during the course of the reaction, the vessel is found to contain 7.00 mol of C, 14.1 mol of H2O, 3.00 mol of CO, and 8.60 mol of H2, what is the reaction quotient Q?
Use a molar mass of 800g/mol for the vegetable oil and use a density of 0.88g/mL for vegetable oil and 0.79 g/mL for methanol to calculate how many moles of ethanol are used.
The enthalpy of formation of ethanol, C2H5OH, is -277.o kJ/mol at 298.15K. Calculate the enthalpy of combustion of one mole of ethanol, assuming that the products are CO2 and H2O
Determine the kinetic energy of the emitted electrons when cesium is exposed to UV rays of frequency = 1.3 x 10^15 Hz? Express your answer in Joules
The Kp for the reaction is 4.3X10^-4 at 648K. Determine the equilibrium partial pressure of NH3 in a reaction vessel that initially contained 0.900atm N2 and 0.500 atm H2 at 648K.
Determine the minimum mass of Sodium bicarbonate or sodium hydrogen carbonate that should be added to the spill to neutralize it?
What proportions of ethanol and water should be mixed in order to produce 100 cm3 of a mixture containing 50 percent by mass of ethanol.
what is the volume of 1 mole of Helium gas when the pressure is 1.47 atm and the temperature is 287 K.
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