# Chemistry

posted by .

The following questions concern the iconic Nestle Toll House Chocolate Chip Cookie recipe, shown below:

2 1/4 cups all-purpose flour

1 teaspoon baking soda

1 teaspoon salt

1 cup butter or margarine, softened

3/4 cup granulated sugar

3/4 cup packed brown sugar

1 teaspoon vanilla extract

2 large egg

1 (12 ounce) package NESTLE® TOLL HOUSE® Semi-Sweet Chocolate Morsels

1 cup chopped nuts

1)Baking soda consists mostly of a single chemical. Look up what it is, its molecular weight and density, and determine the number of moles used in this recipe.

2)Granulated sugar consists mostly of a single chemical. Look up what it is, its molecular weight and density, and determine the number of moles used in this recipe.

3)Table salt consists mostly of a single chemical. Look up what it is, its molecular weight and density, and determine the number of moles used in this recipe.

4)Glutenin (molecular weight: 75,000amu) makes up ~60% of the protein in all-purpose flour. About how many molcules of glutenin are in this recipe?

• Chemistry -

1. Sodium bicarbonate (newer name is sodium hydrogen carbonate) NaHCO3. # mols = grams/molar mass.

2. sucrose. You can look up the other items.

3. NaCl. You can look up the other items.

4. 75,000 grams will contain 6.02E23 molecules.

• Chemistry -

Can you show me the solution and result please?

• Chemistry -

Can you answer this question in the number?

• Chemistry -

#4 is actually 1.5E20

We know the density of flour is ρflour = 100 g/ 170 mL = .59 g/mL. To find the mass of flour, mflour we can multiply ρflour by the total volume of flour, Vflour:

Vflour=2.25 cups⋅237 ml/cup=533 mL
mflour=ρflour⋅Vflour=59 g/mL⋅533 mL=314 g
Now that we have the mflour, we can find the mass of the glutenin, mglutenin, since we know that flour is 60% glutenin by mass:

mglutenin=mflour⋅10 g protein100 g flour⋅60 g glutenin100 g protein=18.84 g glutenin
We can divide mglutenin by its molecular weight, mwglutenin = 75,000 g/mol to find the moles. To find the number of molecules we can multiply the moles by Avogadro's number, NA = 6.022 ⋅ 1023 molecules/mole.

Molecules of glutenin: =mglutenin75,000 g/mol⋅6.022⋅1023 molecules/mol=1.5⋅1020 molecules

• Chemistry -

The following questions concern the iconic Nestle Toll House Chocolate Chip Cookie recipe, shown below:

2 1/4 cups all-purpose flour

1 teaspoon baking soda

1 teaspoon salt

1 cup butter or margarine, softened

3/4 cup granulated sugar

3/4 cup packed brown sugar

1 teaspoon vanilla extract

2 large egg

1 (12 ounce) package NESTLE® TOLL HOUSE® Semi-Sweet Chocolate Morsels

1 cup chopped nuts

1)Baking soda consists mostly of a single chemical. Look up what it is, its molecular weight and density, and determine the number of moles used in this recipe.

2)Granulated sugar consists mostly of a single chemical. Look up what it is, its molecular weight and density, and determine the number of moles used in this recipe.

3)Table salt consists mostly of a single chemical. Look up what it is, its molecular weight and density, and determine the number of moles used in this recipe.

## Similar Questions

1. ### Math

Here is the question: "To make a pancake mix, add 1/2 cup of sugar, 3 cups of flour, 1 cup of powdered milk, 1 teaspoon baking powder and 1/2 teaspoon salt. Assuming the volume of the baking powder and salt are negligible, how much …
2. ### PROPORTIONS

Here is the question: "To make a pancake mix, add 1/2 cup of sugar, 3 cups of flour, 1 cup of powdered milk, 1 teaspoon baking powder and 1/2 teaspoon salt. Assuming the volume of the baking powder and salt are negligible, how much …
3. ### math

i need help with this open-ended you are having so much fun in the kitchen you decide that you want to make your aunt,s favorite dessert to show her special she is to you .you find the recipe on the internet for the recipe white raspberry …
4. ### math

i need help with this open-ended you are having so much fun in the kitchen you decide that you want to make your aunt,s favorite dessert to show her special she is to you .you find the recipe on the internet for the recipe white raspberry …
5. ### Math

It is common to see mixed fractions in recipes. A recipe for pizza crust may ask for 1 1/2 cups of flour. You could measure this amount in two ways. You could fill a one-cup measuring cup with flour and a one-half cup measuring cup …
6. ### Chemistry

The following questions concern the iconic Nestle Toll House Chocolate Chip Cookie recipe, shown below: 2 1/4 cups all-purpose flour 1 teaspoon baking soda 1 teaspoon salt 1 cup butter or margarine, softened 3/4 cup granulated sugar …
7. ### Math

Your favorite chocolate chip cookie recipe makes 4 dozen cookies. Among the other ingredients, the recipe calls for > 1 cup of butter > 2 tsp vanilla extract > 3 cups of flour > 1/2 tsp salt You are asked to make 6 dozen …
8. ### math

Francis is baking cookies. The recipe for chocolate chip cookies calls for 2 2/3 cups of flour, the recipe for peanut butter coolies calls for 2.75 cups, the recipe for ginger snaps calls for 5/2 cups. If francis wants to use as little …
9. ### Science

The following questions concern the iconic Nestle Toll House Chocolate Chip Cookie recipe, shown below: 2 1/4 cups all-purpose flour 1 teaspoon baking soda 1 teaspoon salt 1 cup butter or margarine, softened 3/4 cup granulated sugar …
10. ### Math

- 2 1/4 cups all purpose flour - 1 teaspoon of backing soda - 1 teaspoon of salt - 1 cup (2 sticks) of butter softened - 3/4 cups of sugar - 3/4 cup of packed brown sugar -1 teaspoon of vanilla extract -2 large eggs -2 cups of chocolate …

More Similar Questions