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Dertemine the number of atoms or molecules in 84.6 grams of NA2CO3

User Cyogenos
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1. you would take the given weight of the atom and convert it to moles. Use conversion table. In order to find moles you need to know the molecules molecular weight by summing each of the molar mass (by looking at the periodic table)

2. after finding moles you would now convert that calculated number by multiplying Avogrado's number

User Clint Pachl
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