Suppose 2.8 moles of methane are allowed to react with 5 moles of oxygen.

what is the limiting reagent?

Answer : The limiting reagent is

Solution : Given,

Moles of methane = 2.8 moles

Moles of = 5 moles

Now we have to calculate the limiting and excess reagent.

The balanced chemical reaction is,

From the balanced reaction we conclude that

As, 2 mole of react with 1 mole of

So, 5 moles of react with moles of

From this we conclude that, is an excess reagent because the given moles are greater than the required moles and is a limiting reagent and it limits the formation of product.

Hence, the limiting reagent is

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