Answer:
52.3
Explanation:
You would need to take the given number of moles and multiply by the molar mass, so
0.513 mol Al2O3 (102.0g Al2O3/1 mol Al2O3) = 52.326
Since you're only given 3 sig figs, you report your answer with 3 sig figs.
The mass is 52.3g.
You would need to take the given number of moles and multiply it by the molar mass, so
0.513 mol Al2O3 (102.0g Al2O3/1 mol Al2O3) = 52.326
Molar mass is the weight of a one-mole sample. To find the molar mass, add the mass of atoms (atomic weights) of all the atoms to the molecule. Find the atomic weight of each element using the weight given in the Periodic Table or atomic weight table.
Learn more about molar mass here: brainly.com/question/24236159
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