Question

What did you understand about limiting reagent. 10 gram of carbon is allowed to burnt with 20 grams of oxygen in a comustion process. find the limiting reagent, . how much deficiency

Answer 1

Answer:

The limiting agent is Carbon

Explanation:

Assumption- Complete combustion takes place.

$C + O_{2} ---> CO_{2}$

For 1 mole of Carbon and 1 mole of oxygen we get 1 mole of carbon dioxide.

Number of moles in 10 g of Carbon = 10/12 = 0.8333 mol

Number of moles in 20 g of Oxygen= 20/16 = 1.25 mol

So, we get 0.833 mole of CO2 with 0.833 of Carbon and oxygen each.

The limiting reagent (or limiting reactant or limiting agent) in a chemical reaction is the substance that is totally consumed when the chemical reaction is completed.

Hence, the limiting agent is Carbon  and the excess is 1.25- 0.833 = 0.417 mole