Question

How many moles of Al atoms are needed to combine with 1.58 moles of O atoms to make aluminum oxide.

Answer 1

Answer:

2Al + 3/2O2. ➡️ Al2O3

2moles. 3moles

x moles. 1.58 moles.

no of moles of Al react with 3 moles of o atoms

= 2 moles

no of moles of Al react with 1mole of O atom

= 2/3 moles

no of moles of Al react with 1.58 moles of O atom

=2/3 ×1.58

=1.05 moles