The Mole Project

Avogadro's number is related to any mole substance because the number that Avogadro made was to convert particles into moles of any substance. The number is..... 6.022 x 10^23.
 

 

Converting a recipe from moles to standard cooking measurements

This table is used to adjust the following recipes:       

                                   Moles                 Grams

Flour                            2.66               319.47664 

baking soda                0.0335             2.814201

salt                              0.036              2.103948

butter                          1.084              236.53422

sugar                           0.44                150.61068

brown sugar                0.31                106.11207

eggs                            0.624              99.947952

vanilla                         0.062               9.433238

chocolate chips            2.82                338.69328

Recipe of ANZAC Biscuits:

In this recipe, 0.63 moles of water has been reduced to 0.45 moles of water.
 .63
------ = 1.4%
 .45
So by using the percent yield I am going to calculate the changes that need to be made.

The adjusted recipe would be:
Flour: 1.9 moles
Rolled oats: 1.26 moles
Brown sugar: 1.26 moles
shredded coconut: 1.06 moles
Almonds: 0.68 moles
Cranberries: 0.69 moles
Butter: 0.85 moles
Honey: 0.64 moles
water: 0.45 moles

Oatmeal Chocolate Cookies:

In this recipe, 0.72 moles of Rolled Oats has been reduced to 0.50 moles of Rolled Oats.

 0.72

-------- = 1.44%

 0.50

So by using the percent yield I am going to calculate the changes that need to be made.

The adjusted recipe would be:

Flour: 2.96 moles

Rolled Oats: 0.5 moles

Butter: 2.625 moles

Eggs: 1.3 moles

Walnuts: 0.53 moles

Sugar: 1.74 moles

Brown Sugar: 1.91 moles

Chocolate Chips: 2.64 moles

Baking Soda: 0.17 moles

Vanilla: 0.14 moles

Chocolate Chip Cookies:

In this recipe, 3.8 moles of Chocolate Chips has been reduced to 2.5 moles of Chocolate Chips

The ratio is 1.52

Flour:  4.8
Coco Powder: .697
Butter: 2.48
Eggs: .5
Walnut: .5
Sugar: 2.20
Brown Soda: .164
Vanilla: .131

Drop Sugar Cookies with Walnuts:

In this recipe, 5.33 moles of flour has been reduced to 4.33 moles of flour.

The ratio is 1.23

Flour: 4.31
Butter: 1.91
Eggs: .39
Walnuts: .78
Sugar: 3.40
Baking Soda: .203
Vanilla: .252

1. You want to 6 make grilled cheese sandwiches (use the equation below, Bd = bread and Ch = Cheese) and you have 13 slices of bread and 5 slices of cheese. How may grilled cheese sandwich can you make? And what is the limiting reagent?
                                                            2Bd + Ch→Bd2Ch
You have 13 slices of bread
You have 5 slices of cheese
                                                                               13
You need 2 slices of bread to make 1 sandwich, so ----  is 6.5. You can make 6 sandwiches with the bread.
                                                                                2
                                                                             5
You need 1slice of cheese to make 1sandwich, so --- is 5.You can only make 5sandwiches with the cheese.
                                                                             1
The limiting reactant is cheese.


2. You are having some friends over for dinner you want to make 8 cheese burgers, you have 8 hamburger patties, 12 bums, 7 slices of cheese, 18 slices of tomato, 16 pieces of lettuce and 9 slices of onion. Use the equation below (where buns = B, hamburger patty = H, cheese = Ch, tomatoes = T lettuce = L and onion = O) to determine how many cheese burgers you can make (what’s your theoretical yield?) and what the limiting reagent is? Hint you may need to balance the equation first.
                                               B+ H+ Ch+ 2T+ 2L+O → BHChT2L2O

Considering  cheese is the limiting reagent and there are only 7 slices of  them you can only make 7 sandwiches.

3. Balance the chemical equations below. Find the limiting reagent and the theoretical yield if there is one gram of each reagent.

 

 

Sources:

Ms. Del Bosque