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Vocabulary
Moles to Moles
Mixed Problems
Mass to Mass
Miscellaneous
100
A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction.
What is mole ratio?
100

CO2 + 2LiOH --> Li2CO3 + H2O How many moles of lithium hydroxide are required to react with 20 mol of CO2?

What is 40 mol LiOH?

100

Mg + 2HCl --> MgCl2 + H2 How many grams of hydrogen will be produced if we start with 2 moles of hydrochloric acid and excess magnesium?

What is 2 g H2?

100

Mg + 2HCl --> MgCl2 + H2 What mass of hydrogen is produced from the reaction of 75 g HCl (MM=36.5 g/mol) and excess Mg?

What is 2.0 g H2?

100

Molar volume

What is molar 22.4 liters?

200
The measured amount of product obtained after performing a chemical reaction.
What is actual yield?
200

6CO2 +6H2O --> C6H12O6 + 6O2 How many moles of carbon dioxide are needed to react with 3.25 mol of water in the reaction described above?

What is 3.25 mol CO2?

200

Mg + 2HCl --> MgCl2 + H2 What mass of hydrochloric acid (MM=36.5 g/mol) is needed to react with 2.50 moles of magnesium?

What is 182 g HCl?

200

2KClO3 --> 2KCl + 3O2 How many grams of KCl are produced if 5.0 g of KClO3 is decomposed?

What is 3 g KCl?

200

Avogadro's number.

What is 6.022 x 1023?

300

The substance that is created from a chemical reaction

What is a product?

300

2Mg +O2 --> 2MgO How many moles of magnesium oxide are produced from 1.2 moles of magnesium?

What is 1.2 mol MgO?

300

4 Al + 3 O2 --> 2 Al2O3    How many moles of aluminum atoms are needed to combine with 1.58 mol of oxygen molecules to make aluminum oxide?

What is 2.1 mol Al?

300

2 Na + Cl2 --> 2 NaCl Determine the amount of product that can be produced from 24.7 g of sodium and excess chlorine.

What is 62 g NaCl?

300

How many moles are present in 34 grams of Cu(OH)2?

What is 0.35 mol Cu(OH)2?

400

The substance that can be consumed in a chemical reaction.

What is a reactant?

400

3 H2 + N2 --> 2 NH3  How many moles of ammonia are produced when 6 mol of hydrogen gas react with an excess of nitrogen gas?

What is 4 mol NH3?

400

2 NH3 --> 3 H2 + N2    How many moles of H2 can be formed by the decomposition of 0.145 moles of ammonia?

What is 0.218 mol H2?

400

2 NaOH + H2SO4 --> H2O + Na2SO4    How many grams of sodium sulfate will be formed from 200 g NaOH?

What is 355 g Na2SO4?

400

Balanced equation for ___LiOH + ___H2SO4 --> ___Li2SO4 + ___H2O

What is: 2 LiOH + 1 H2SO4 -->1 Li2SO4 + 2H2O ?

500
States that mass is neither created nor destroyed during ordinary chemical or physical reactions. (This is why we balance chemical equations!)
What is the law of conservation of mass?
500

2 H2 + O2 --> 2 H2O   How many moles of oxygen would be required to produce 5.0 moles of water?

What is 2.5 mol O2?

500

4 Al2O3 + 9 Fe --> 3 Fe3O4 + 8 Al    The mass of aluminum produced when 65 g of aluminum oxide is consumed.

What is 34.4 grams of aluminum?

500

CuCl2 + 2 NaNO3 --> Cu(NO3)2 + 2 NaCl    If 15 g CuCl2 (MM=134.5 g/mol) reacts with NaNO3, what mass of sodium chloride can be formed?

What is 13.0 g NaCl?

500

Cl2 + 2 KBr --> 2 KCl + Br2  How many grams of potassium chloride can be produced from 300. g of chlorine?  

What is 1007 g KCl?