A sample of methane, CH4, has a mass of 22.00 g. Calculate the number of methane molecules in the sample. number of molecules:
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Step 1
Given mass of methane, CH4 = 22.00 g Molar mass of CH4 = 12.01 g/mol (C) + 4(1.01 g/mol) (H) = 16.05 g/mol Number of moles = Mass / Molar mass Number of moles = 22.00 g / 16.05 g/mol ≈ 1.37 mol Show more…
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