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I'm not sure if you mean 'mols' of a compound. If you do, divided the total mass of the compound, by the Mr (relative atomic mass). When working out the Mr, use the Periodic Table and use the top number above the element. Ignore the ratio numbers infront of the compound, for example 2H20, only use that for your molar ratio

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6y ago
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15y ago

The allowable concentration level of vinyl chloride, C2H3Cl, in the atmosphere in a chemical plant is 6.52e-6 g/L. How many molecules per liter is this?

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6y ago

One mole of anything has 6.02x10^23 atoms or molecules.

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Q: How do you calculate molecules per liter?
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