Limiting Reactants ClarkGrubb Mansberger Yagel Limiting vs Excess

Limiting Reactants Clark-Grubb Mansberger Yagel

Limiting vs. Excess Limiting Reactant. The reactant in a chemical reaction that limits the amount of product that can be formed. The reaction will stop when all of the limiting reactant is consumed. Excess Reactant. The reactant in a chemical reaction that remains when the reaction stops. The excess reactant remains because there is nothing left with which it can react.

Real Life Example… If there are only 8 car bodies, then only 8 cars can be made. Likewise with chemistry, if there is only a certain amount of one reactant available for a reaction, the reaction must stop when that reactant is consumed whether or not the other reactant has been used up.

When asked to solve for limiting reactant, solve for theoretical yield in grams of one product for ALL reactants! 4 NH 3+ 5 O 2 4 NO(g) + 6 H 2 O A 23. 8 grams sample of ammonia is mixed with 18. 0 grams of oxygen. Which is the limiting reactant and which is in excess? *The limiting REACTANT is the one which smallest amount of product produced the #1

#2 4 NH 3+ 5 O 2 4 NO(g) + 6 H 2 O A 46. 2 grams sample of ammonia is mixed with 26. 8 grams of oxygen. What is theoretical mass of water that can be produced? *The limiting REACTANT is the one which smallest amount of product produced the

When 45 g of oxygen reacts with 56 g of potassium, what is theoretical yield in grams of potassium oxide? 4 K + O 2 2 K 2 O #3