If 11.50 mL of an unknown gas effuses through a small hole in a heated vessel in the same time it takes 9.63 mL of argon to effuse through the hole under the same conditions, what is the molecular weight of the unknown gas. (Use 3 sig figs and amu for the units of the answer.)
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If 11.50 mL of an unknown gas effuses through a small hole in a heated vessel in the same time it ta...
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