Stoichiometry

Front

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

Back

Write a Balanced Equation

Front

Limiting Reagent

Back

what you run out of first

Front

Excess Reagent

Back

what you have left over

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

Use the equation 2 Al + 3 Cl₂ ---> 2 AlCl₃. If 2 moles of aluminum and 2 moles of chlorine are reacted, identify the limiting reactant.

Back

Cl₂

Front

If you predicted that 1.5 moles of Magnesium are used in a reaction, and you have 2.0 moles of Magnesium, what type of reactant is Magnesium?

Back

Excess Reactant

Front

If a chemist calculates the maximum amount of product that could be obtained in a chemical reaction, he or she is calculating the

Back

theoretical yield

Front

2 KClO₃ → 2 KCl + 3 O₂
How many moles of oxygen are produced when 6.7 moles of KClO₃ decompose completely?

Back

10.1 mol

Front

2Na + 2H₂O → 2NaOH+ H₂
How many grams of hydrogen are produced if 120 g of Na are available?

Back

5.2 g

Front

In the formation of CO₂ from CO and oxygen, how many Liters of CO₂ are produced by the reaction of 8 mols of O₂ with an excess of carbon monoxide?

Back

358.4 Liters