Question

Still using the reaction from the video, what is the limiting reagent when 2 moles of Al are reacted

Answer 1

The limiting reagent will be Al

What are limiting reagents?

They are reagents that limit the quantity of products that are formed in reactions.

From the equation of the reaction:

$4Al + 3O_2 --- > 2Al_2O_3$

The mole ratio of Al to O2 is 4:3.

With 2 moles of Al and 2 moles of O2, Al becomes limiting while O2 is in excess.

With 2 moles of O2, the amount of Al required should be:

                          2 x 4/3 = 2.67 moles.

With 2 moles of Al, the amount of O2 required should be:

                    2 x 3/4 = 1.5 moles

Thus, O2 is in excess by 0.5 moles.

More on limiting reagents can be found here: brainly.com/question/11848702

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