Calculate the number of the constituent atoms in 53 g of sodium carbonate
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Calculate the number of the constituent atoms in 53 g of sodium carbonate
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1 mole of a substance has a mass equal to the relative molecular mass of that substance.
Say, 1 mole of Oxygen. Oxygen has a relative molecular mass of 32.
Hence, 1 mole of oxygen gas has a mass of 32 g.
Now, sodium carbonate has the formula
Find the mass of 2 Na atoms, 1 C atom and 3 O atom. Add them up.
1 mole of sodium carbonate has the mass that you just got.
Use proportions to find how many moles 53 g of sodium carbonate contains.
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