therealpr1metime45
05.02.2022 •
Chemistry
Calculate how many moles of element Q are in 23.53 g of element Q. The molar mass of element Q is 40.64 g/mol
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Ответ:
0.579 moles
Explanation:
Moles = 23.53/40.64
= 0.5789 moles
Ответ:
moles of Fe = 0.14
Further explanationGiven
Reaction
2 Fe2O3 + 3C ---> 4 Fe + 3 CO2
Required
moles of Fe
Solution
mol of CO2 :
= mass : MW
= 4.64 g : 44 g/mol
= 0.105
From the equation, mol ratio Fe : CO2 = 4 : 3, so mol Fe :
= 4/3 x mol CO2
= 4/3 x 0.105
= 0.14