What volume of oxygen gas at 35.0°C and 1.03 atm is required to react completely with 17.0 g of iron according to the following reaction? iron(s) + oxygen(g) iron(II) oxide(s)
___ liters oxygen gas
Molar mass of Fe = 55.85 g/mol
mass of Fe = 17.0 g
we have below equation to be used:
number of mol of Fe,
n = mass of Fe/molar mass of Fe
=(17.0 g)/(55.85 g/mol)
= 0.3044 mol
the reaction taking place is:
2 Fe + O2 —> 2 FeO
from reaction,
moles of O2 required = (1/2)*moles of Fe
= (1/2)*0.3044 mol
= 0.1522 mol
we have:
P = 1.03 atm
n = 0.1522 mol
T = 35.0 oC
= (35.0+273) K
= 308 K
we have below equation to be used:
P * V = n*R*T
1.03 atm * V = 0.1522 mol* 0.0821 atm.L/mol.K * 308 K
V = 3.74 L
Answer: 3.74 L
Feel free to comment below if you have any doubts or if this answer do not work. I will correct it and submit again if you let me know
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