Lets put this material into context by looking at a fairly simple common recipe that of Toll House Chocolate Chip Cookie. We will use this recipe to relate the measured amounts of ingredients to the number of molecules present in the reaction. For this remember that the definition of a mole is the 1 mole of a substance contains 6.022 X 1023 molecules.

Question

Lets put this material into context by looking at a fairly simple common recipe that of Toll House Chocolate Chip Cookie. We will use this recipe to relate the measured amounts of ingredients to the number of molecules present in the reaction. For this remember that the definition of a mole is the 1 mole of a substance contains 6.022 X 1023 molecules.

A simple recreation of the Nestle Toll House Chocolate Chip Cookie recipe is as follows:

2 1/4 cups all - purpose flour

1 tsp. baking soda

1 tsp. salt

1 cup (2 sticks butter or margarine, softened

3/4 cups granulated sugar

3/4 cups packed brown sugar

1 tsp. vanilla extract

2 large eggs

2 cups NESTLE TOLL HOUSE Semi-Sweet Chocolate Morsels

1 cup chopped nuts

Table salt consists of mostly a single chemical, sodium chloride (NaCl). Look up the molecular weight and density of sodium chloride, and determine the number of moles use in this recipe. Give your answer in moles but do not include the units

The answer I got for this question was: 0.1818480492813142. I need to know if this answer is correct, I followed my professor's example on how we are supposed to do it to a T. However, the answer checker keeps saying it's wrong, I genuinely don't know what I am doing wrong and I would really appreciate some guidance. The equation we had to use was: cups/spoons -> ML -> density x grams divide mass=

I wish I could put a picture on here to show the equation, but I can't. I do know the density of salt is 2.16 and the mass is 58.44

Answer 1

1tsp * 4.9cm^3/tsp * 2.16g/cm^3 * 1mole/58.44g = (4.9*2.16)/58.44 = 0.1811 mole

maybe rounding?