S'more Stoichiometry

What are the units for molar mass?

• grams
• amu
• grams/mole
• liters

If reaction starts with 20g of reactants it should produce... 

• a total of 40g of product
• a total of 10g of product
• a total of 80 g of product
• a total of 20g of product

__Na + __Cl₂ → __NaCl

• 1,1,2

• 2,1,2

• 2,1,1

• already balanced

What is the molar mass of table salt (NaCl)?

• 116.886 g/mol
• 35.453 g/mol
• 22.990 g/mol
• 58.443 g/mol

What is the first thing you must do to solve a stoichiometry problem?

• write a balanced equation

• calculate the number of moles

• calculate the molar mass

• determine the mole ratios

How do you go from grams to moles?

• divide by molar mass

• multiply by molar mass

• divide by avogadro's number

• multiply by avogadro's number

The ______________ yield is the maximum amount of product possible in a reaction. This determines the amount of product that should be produced in a perfect setting

• percent

• actual

• stoichiometry

• theoretical

What is a limiting reactant?

• the reactant that determines how much product can be made

• the reactant that is in excess

• the product that you can make the most of

• the amount of reactants that react with each other

1 Cheese + 2 Bread --> 1 grilled cheese

How many grilled cheeses can you make with 26 slices of bread and 14 pieces of cheese?

• 14

• 13

• 26

• 40

You need 2 pieces of bread, 1 tablespoon of peanut butter and 2 tablespoons of jelly to make a sandwich.

If you have 10 pieces of bread, 4 tablespoons of peanut butter and 20 tablespoons of jelly, what is the limiting reactant?

• bread

• jelly

• peanut butter

• sandwich