| Gas
densities |
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| • | d = |
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| • | At STP |
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| • | 1 mol
of H2 has a mass of 2.0 g |
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| so dH2
= |
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| • | 1 mol
of O2 has a mass of 32.0 g |
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| so dO2 = |
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| • | 1 mol of CO has a
mass of 28.0 g |
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| so dCO = |
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