A spherical vessel with a volume of 1.00 L was evacuated and sealed. Twenty- four hours later the pressure of air in the vessel was found to be 1.20 × 10-6 atm. During this 24-h period, the vessel had been surrounded by air at 27oC and 1.00 atm. Assuming that air is 78 mole percent nitrogen and that the remainder is oxygen, calculate the diameter of the tiny circular hole in the vessel that allowed the air to leak in.
Answer to relevant QuestionsCalculate the number of stages needed to change a mixture of 13CO2 and 12CO2 that is originally 0.10% (by moles) 13CO2 to a mixture that is 0.010% 13CO2 by a gaseous diffusion process. (The mass of 13C is 13.003355 amu.) You are given an unknown gaseous binary compound (that is, a compound consisting of two different elements). When 10.0 g of the compound is burned in excess oxygen, 16.3 g of water is produced. The compound has a density ...A bicycle tire is filled with air to a pressure of 75 psi at a temperature of 19oC. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58oC. The volume of the tire increases by 4.0%. What is the ...In a mixture of the two gases, the partial pressures of CH4(g) and O2(g) are 0.175 atm and 0.250 atm, respectively. a. What is the mole fraction of each gas in the mixture? b. If the mixture occupies a volume of 10.5 L at ...One of the chemical controversies of the nineteenth century concerned the element beryllium (Be). Berzelius originally claimed that beryllium was a trivalent element (forming Be3+ ions) and that it formed an oxide with the ...
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