Limiting Reactants and Theoretical Yield 19. Suppose you are going on a picnic a

Question

Limiting Reactants and Theoretical Yield

19. Suppose you are going on a picnic and you are bringing sandwiches. You find all the ingredients that you have in your kitchen and your goal is to make as many sandwiches as you can.

You find:

26 slices of bread

14 pieces of meat

3 tomatoes
16 leaves of lettuce

15 pieces of cheese

You want to make your sandwiches with 2 slices of bread, 1 piece of meat, 1 pieces of cheese, 2 slices of tomato (each tomato can be sliced into 9 slices) and 1 leaf of lettuce.

How many sandwiches can you make?

Show your sandwich making

Explanation / Answer

13 sandwitches can be prepared.

20)

2 slices of bread +1 piece of meat+1 pieces of cheese+2 slices of tomato+ 1 leaf of lettuce---> 1 sandwitches.

21) from the given data among all materials 3 tomatoes gives 27 slices with this maximum 13 sandwithces can be prepared and one tomatoe slice will be left. so that it is acts as limiting reagent.

22) tomatoes

23) tomatoes

24) THEORITICAL YIELD:

this is how much product will be synthesized in ideal conditions.To determine theoretical yield, multiply the amount of moles of the limiting reagent by the ratio of the limiting reagent and the synthesized product and by the molecular weight of the product.

25) limiting reagent is Na3PO4 , Theoritical yield= 301.62 grams

26) limiting reagent Iis Fe2(SO4)3 , Theoritical yield = 1.5081 grams

27) Limiting reagent is AuCl3, theoritical yield= 5.51 grams

28) Limiting reagent is AuCl3, theoritical yield= 6.48 grams

29) Percent yield= mass of actual yield/mass of theoritical yiel*100 = 1.25/1.5081*100 = 82.88 %

30) mass of solid product formed = 5.54 grams

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