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S: 26.9 g/ 32 g/mol = 0.840 mol
O: 53.8 g / 16 g/mol = 3.363 mol
dividir
Na: 0.839 mol ( 0.839 mol = 1
S: 0.840 mol / 0.839 mol = 1
O: 3.363 mol / 0.839 mol = 4
FE: NaSO₄
Masa molecular de la FE
Na: 1 x 23 = 23 g/mol
S: 1 x 32 = 32 g/mol
O: 4 x 16 = 64 g/mol
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Mm = 119 g/mol
n = 238 g/mol / 119 g/mol
n = 2
FM: (NaSO4)₂ = Na₂S₂O₈