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63 (IFSC) O sulfato de cobre pentaidratado (CuSO4⋅5H2O)\left(\mathrm{CuSO}_{4} \cdot 5 \mathrm{H}_{2} \mathrm{O}\right)(CuSO4⋅5H2O) forma cristais azuis. Quantos mols de água há em 100 g100 \mathrm{~g}100 g deste sal? Considere as seguintes massas atômicas arredondadas: Cu=64;S=32;O=16C u=64 ; S=32 ; O=16Cu=64;S=32;O=16. a) 1.8 mol1.8 \mathrm{~mol}1.8 mol d) 5,4 mol5,4 \mathrm{~mol}5,4 mol b) 20 mol20 \mathrm{~mol}20 mol e) 1,0 mol1,0 \mathrm{~mol}1,0 mol c) 4.0 mol4.0 \mathrm{~mol}4.0 mol
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