Stoichiometry Practice

Front

Using the balanced equation: Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g), how many grams of HCl are consumed by the reaction of 2.50 moles of magnesium?

Back

182 g

Front

Using the balanced equation: Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g), what is the mass in grams of H₂ gas when 4.0 moles of HCl is added to the reaction?

Back

4.0 g

Front

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

Back

Write a Balanced Equation

Front

For the Balanced Reaction: 3 Mg + 1 Fe₂O₃ → 3 MgO + 2 Fe; What is the Ratio of moles of Mg to moles Fe?

Back

3mol Mg / 2 mol Fe

Front

2CO + O₂ → 2CO₂
How many liters of carbon dioxide are produced from 10L of carbon monoxide?

Back

10

Front

How many liters of NH₃ are needed to react completely with 30.0L of NO?
4NH₃+6NO --> 5N₂ + 6H₂O

Back

20.0 L

Front

2Al + 6HCl --> 2AlCl₃ + 3H₂
Aluminium reacts with hydrochloric acid. How many grams of aluminum are necessary to produce 11 L of hydrogen gas at STP?

Back

8.8 grams

Front

What volume of hydrogen will be produced at STP by the reaction 67.3 g of magnesium?

Back

62.0 L

Front

2Al + 6HCl --> 2AlCl₃ + 3H₂
Aluminium reacts with hydrochloric acid. How many grams of aluminum are necessary to produce 11 L of hydrogen gas at STP?

Back

8.8 grams

Front

How many particles are in a mole?

Back

6.02 x 10²³