Chemistry Ch. 12-13 Test Review

Al (s) + O2 (g) --> Al2O3 (s)

Balance the equation. Then convert 150 Liters of O2 to grams of Al2O3.

Al (s) + O2 (g) --> Al2O3 (s)

Balance the equation. Then convert 342 grams of Al to formula units of Al2O3.

Al (s) + O2 (g) --> Al2O3 (s)

Balance the equation. Then convert 4.6 moles of Al2O3 to Liters of O2.

Al (s) + O2 (g) --> Al2O3 (s)

Balance the equation. Then convert 6.50 grams of Al to grams of Al2O3.

2 C2H6 (g) + 7 O2 (g) --> 4 CO2 (g) + 6 H2O (l)

If 30.0 grams of C2H6 reacts with 84.0 grams of O2, what is the limiting reactant? (Hint, later I am going to ask how much H2O is produced)

• C2H6

• O2

• CO2

• H2O

2 C2H6 (g) + 7 O2 (g) --> 4 CO2 (g) + 6 H2O (l)

If 30.0 grams of C2H6 reacts with 84.0 grams of O2, what is the excess reactant? (Hint, later I am going to ask how much H2O is produced)

• C2H6

• O2

• CO2

• H2O

2 C2H6 (g) + 7 O2 (g) --> 4 CO2 (g) + 6 H2O (l)

If 30.0 grams of C2H6 reacts with 84.0 grams of O2, how much H2O will be produced?

2 C2H6 (g) + 7 O2 (g) --> 4 CO2 (g) + 6 H2O (l)

If 30.0 grams of C2H6 reacts with 84.0 grams of O2, how much excess reactant is left over after the reaction stops? (Hint, later I am going to ask how much H2O is produced)

C3H8 (g) + 5 O2 (g) --> 3 CO2 (g) + 4 H2O (g)

If 30.0 grams of C3H8 combusts and 70.0 grams of CO2 are collected in a lab, what is the theoretical yield of CO2?

C3H8 (g) + 5 O2 (g) --> 3 CO2 (g) + 4 H2O (g)

If 30.0 grams of C3H8 combusts and 70.0 grams of CO2 are collected in a lab, what is the percent yield of CO2?