Two moles of an unknown substance were shown to have a mass of 240g. What molecular mass does the substance have?

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03-04-2018
Chemistry

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Two moles of an unknown substance were shown to have a mass of 240g. What molecular mass does the substance have?

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kenmyna kenmyna · Answer 1 · 2018-04-12T10:02:52+02:00

kenmyna kenmyna

12-04-2018

The molecular mass of the unknown substance is calculated as follows

mass of unknown substance / moles of unknown substance

that is 240g /2 mol = 120 g/mol

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