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Naya [18.7K]
3 years ago
12

Calculate the mass percent composition of sulfur in Al2(SO4)3.

Chemistry
1 answer:
Anastaziya [24]3 years ago
6 0
The molar mass of aluminum sulftae is 342.14 g/mol.

Since the subscript shows that there are 3 sulfurs within the substance, the total mass of sulfur is 96.21g/mol

Now take the mass of the sulfur and divide it by the molar mass of aluminum sulfate, then multiply by 100:
(96.21/342.15)(100) = 28.1% mass composition of sulfate
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