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Answer:The atomic weight is the lower number on each chemical. Fe has a mass of 56, S a mass of 32 and O a mass of 16. As there are four oxygens present in this compound, you multiply 16 by 4 to get 64. Lastly you add all these separate masses together, which gives a total relative mass of 152.
Explanation:
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The mass of iron sulfate that could be obtained from 4 g of iron is 10.79 grams.
What is the relation between mass & moles?
Moles of any substance from mass will be calculated by using the below equation as:
n = W/M, where
W = given mass
M = molar mass
Moles of Fe = 4g / 56g/mol = 0.071 mol
From the stoichiometry of the reaction it is clear that equal moles of iron sulfate will be generated by same moles of iron.
0.071 moles of Fe = produces 0.071 moles of FeSO₄
Mass of FeSO₄ = (0.071mol)(152g/mol) = 10.79g
Hence obtained mass of FeSO₄ is 10.79g.
To know more about mass & moles, visit the below link:
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