Find the mass of oxygen in the cylinder
In a portable oxygen system, the oxygen (O2) is contained in a cylinder whose volume is 0.0027 m3. A full cylinder has an absolute pressure of 1.9 107 Pa when the temperature is 300 K. Find the mass of oxygen in the cylinder.
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A mixture of three gases has a total pressure of 1,380 mmHg at 298 K. The mixture is analyzed and is found to contain 1.27 mol Co2, 3.04 mol CO, and 1.50 mol Ar. What is the partial pressure of Ar?
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What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 ´ 102 nm (c = 3.0 x 108m/s; h = 6.63 x 10-34 J s; nA = 6.022 x 1023/mole)?
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