Oreo Stoichiometry Challenge

What is the chemical formula for an Oreo cookie if it consists of two wafers and one filling?

• Wf2Fi

• 2WfFi

• WfFi2

• Wf+Fi

How many wafers are produced from decomposing three Oreo cookies?

• 3 wafers

• 9 wafers

• 12 wafers

• 6 wafers

What is the mass of the filling if the mass of a wafer is 4.27 grams and the total cookie mass is 11.41 grams?

• 6.87 grams

• 5.87 grams

• 3.87 grams

• 2.87 grams

How many grams of wafers would be produced from 250 grams of Oreos?

• 187.1 grams

• 200 grams

• 150 grams

• 100 grams

How many grams of Oreos are needed to produce 57.5 grams of wafers?

• 70 grams

• 76.4 grams

• 85 grams

• 80 grams

What is the mole ratio of sodium to Na2Se in the decomposition of sodium selenite?

• 1:1

• 1:2

• 2:2

• 2:1

How many grams of sodium are produced from decomposing 250 grams of Na2Se?

• 92 grams

• 100 grams

• 85 grams

• 75 grams

How many grams of selenium are produced from 5 grams of sodium?

• 12 grams

• 5 grams

• 10 grams

• 8.59 grams

What is the first step in a grams to grams problem in stoichiometry?

• Convert grams to moles

• Convert moles to grams

• Multiply by the conversion factor

• Use the mole ratio

What does the mole ratio in a balanced chemical equation represent?

• The temperature change during the reaction

• The ratio of reactants to products

• The physical states of the chemicals

• The color change in the reaction