Limiting Reactant & Percent Yield

The following are TRUE about limiting reactant except

• It determines the amount of product that is formed.

• It is the reactant present in the lower amount.

• It is nearly always entirely consumed.

• It usually is in excess.

Consider the reaction between aluminum and chlorine.

2Al(s) + 3Cl₂ (g) → 2AlCl₃ (g)

If the ratio of the available substances is 3 of Al: 3 moles Cl₂, then what is the limiting reactant?

Consider the reaction between aluminum and chlorine.

2Al(s) + 3Cl₂ (g) → 2AlCl₃ (g)

If the ratio of the available substances is 3 of Al: 3 moles Cl₂, then what is the excess reactant?

Which is the limiting reactant when 5.00 g of H₂ and 10.0 g of O₂ react and form water?

Silicon nitride is a very hard, high-temperature-resistant ceramic used as a component of turbine blades in jet engines. It is prepared according to the following equation:

3Si(s) + 2N₂(g) ⟶ Si₃N₄(s)

Which is the limiting reactant when 2.00 g of Si and 1.50 g of N₂ react?

In an experiment, 5.00g aluminum is heated with 25.0g sulfur to form aluminum sulfide. The equation for the reaction is Al (s) + S (s) → Al₂S₃ (s)

What is the limiting reactant?

For the given reaction,

C₅H₁₂ + 8 O₂ → 5 CO₂ + 6 H₂O

If the reactants C₅H₁₂ and O₂ are having 2 moles and 8 moles of initial feed respectively,

which is the excess reactant in the reaction?

• C₅H₁₂

• O₂

• CO₂

• H₂O

For the given reaction,

C₅H₁₂ + 8 O₂ → 5 CO₂ + 6 H₂O

If the reactants C₅H₁₂ and O₂ are having 2 moles and 8 moles of initial feed respectively,

which is the limiting reactant in the reaction?

• C₅H₁₂

• O₂

• CO₂

• H₂O

For the given reaction,

C₅H₁₂ + 8 O₂ → 5 CO₂ + 6 H₂O

If the reactants C₅H₁₂ and O₂ are having 2 moles and 8 moles of initial feed respectively,

how many moles of C₅H₁₂ are there when the reaction is completed?

• 0

• 1

• 2

• 3

For the given reaction,

C₅H₁₂ + 8 O₂ → 5 CO₂ + 6 H₂O

If the reactants C₅H₁₂ and O₂ are having 2 moles and 8 moles of initial feed respectively,

how many moles of O₂ are there when the reaction is completed?

• 0

• 2

• 4

• 6