Stoich LR, ER, & TY Vocab & Calcs

The substance that determines the amount that we can actually make is the:

• actual yield

• excess reactant

• limiting reactant

• theoretical yield

The most amount of product that can possibly be made is the:

• actual yield

• excess reactant

• limiting reactant

• theoretical yield

What is the limiting reactant in the following situation?

2 Al + 3 Br2 ------> 2 AlBr3

3 mol 4 mol

• Al

• Br2

• AlBr3

• cannot be determined

What is the theoretical yield in the following situation?

2 Al + 3 Br2 ------> 2 AlBr3

3 mol 4 mol

• 2.67 mol

• 3 mol

• 4 mol

• cannot be determined

What is the theoretical yield of water in the following situation?

2.02 32 18.02

2 H2 + O2 ---> 2 H2O

10g 100g

• about 3 mol

• about 50g

• about 9 mol

• about 90g

What is the limiting reactant in the following situation?

2.02 32 18.02

2 H2 + O2 ---> 2 H2O

10g 100g

• hydrogen

• oxygen

• water

• none of the above