Solid aluminum reacts with oxygen gas to form solid aluminum oxide. if 8.5 moles

Question

Solid aluminum reacts with oxygen gas to form solid aluminum oxide. if 8.5 moles of aluminum reacts with excess oxygen gas, how many moles of aluminum oxide can be formed? Solid aluminum reacts with oxygen gas to form solid aluminum oxide. if 8.5 moles of aluminum reacts with excess oxygen gas, how many moles of aluminum oxide can be formed? Solid aluminum reacts with oxygen gas to form solid aluminum oxide. if 8.5 moles of aluminum reacts with excess oxygen gas, how many moles of aluminum oxide can be formed?

Explanation / Answer

The balanced equation is

4Al (g) +3 O2 (g) --------------->2 Al2O3(s)

Thus 4 moles of Al on reaction with oxygen gives 2 moles of Al2O3

if 8.5 moles of Al reacts = 8.5x2 /4

= 4.25 moles of Al2 O3 is formed.

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