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

(Avogadro's number) or 6.02 x 1023 particles, atoms, molecules, or formula units.

What is equivalent to 1 mole?

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 abovementioned reaction?

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 conversion factor created using the periodic table.

What is molar mass?

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

How many moles of aluminum atoms are needed to combine with 1.58 mol of oxygen molecules to make aluminum oxide (Al2O3)?

What is 2.1 mol Al?

300

Sodium and chlorine react to produce sodium chloride (table salt; MM=58.5 g/mol). Determine the amount of product that can be produced from 24.7 g of sodium and excess chlorine.

What is 62 g NaCl?

300

This requires three conversions.

How many conversions are needed to convert from gram A to gram B?

400

It controls the molarity (M) or concentration of a solution.

What is the amount of solute?

400

Ammonia, NH3, is widely used as a fertilizer and in many household cleaners. How many moles of ammonia are produced when 6 mol of hydrogen gas reacts with excess nitrogen gas?

What is 4 mol NH3 

400

Ammonia (NH3)decomposes to produce nitrogen and hydrogen gases. How many moles of H2 can be formed by the decomposition of 0.145 moles of ammonia?

What is 0.218 mol H2?

400

Sodium hydroxide (Na(OH) reacts with sulfuric acid (H2SO4; MM=98.1 g/mol) to form water and sodium sulfate (Na2SO4). How many grams of sodium sulfate (MM=124 g/mol) will be formed from 200 g NaOH (MM=40 g/mol) and an excess of sulfuric acid?

What is 355 g Na2SO4?

400

Write the complete balanced equation for the following reaction (include states): When lithium hydroxide (LiOH) pellets are added to a sulfuric acid solution (H2SO4), lithium sulfate ( Li2SO4) and water are formed.


What is: 2LiOH (s) + H2SO4 (aq) --> Li2SO4 (aq) + 2H2O (l)

500

This creates a solution.

What is dissolving a solute in a solvent?

500

Hydrogen and oxygen gases react under a specific set of conditions to produce water. How many moles of oxygen would be required to produce 5.0 moles of water?


What is 2.5 mol O2?

500

N2 + 3H2 -> 2NH3

The number of moles equivalent to 2.02 g H2

What is 1 mole H2. ?

500

When copper (II) chloride(CuCl2) reacts with sodium nitrate(NaNO3), copper (II) nitrate and sodium chloride are formed. If 15 g CuCl2 (MM=134.5 g/mol) reacts with 20 g NaNO3 (MM=85 g/mol), how much sodium chloride (MM = 58.5 g/mol) can be formed?

What is 13.0 g NaCl?

500

This is how you calculate Molarity.

What is Molarity(M) = mol/Volume(L)?

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