Question

The materials needed to make a burger include 1 burger bun, 2 cups of vegetable, and 1 burger patty. Now, there are 5 burger buns, 12 cups of vegetable, and 6 burger patties. Which is the limiting reactant/material? What is the theoretical yield of burger? If 3 burgers are accidentally dropped on the floor, what is the percent yield?

Answer 1

Materials needed to make a burger = 1 burger bun, 2 cups vegetable, 1 burger patty

Materials present = 5 burger buns, 12 cups vegetable, 6 burger patties

The limiting reactant is the one which determines the overall yield.

As we have 5 burger buns, it needs 10 cups vegetable and 5 burger patties.

So, the materials, vegetables and burger patties are available in excess.

So, burger buns are the limiting reactants / material.

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Materials present = 5 burger buns, 12 cups vegetable, 6 burger patties

5 Burgers can be made by using = 5 burger buns, 10 cups vegetable, 5 burger patties

From the materials present, we can prepare 5 burger buns.

So, theoretical yield is 5 burger buns.

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3 burgers are accidentally dropped on the floor.

So, the left over burgers = 2

But, we prepared 5 burgers.

Percent yield = [(Practical yield) / (Theoretical yield)] x 100

Percent yield = [(2 burgers) / (5 burgers) ] x 100

Percent yield = 40%