Stoichiometry Review Jeopardy!!

Vocabulary

100

A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction.

What is mole ratio?

200

The measured amount of product obtained after performing a chemical reaction is same or different from the theoretical value?

Different

300

The mass of one mole of a substance

Molar Mass

400

The volume occupied by one mole of a gas.

22.4 L

500

Study of quantitative relationships between the amounts of reactants used and products formed by a chemical reaction;

Soichiometry

Moles to Molecules

100

CO2 + 2LiOH --> Li2CO3 + H2O How many moles of lithium hydroxide are produced from 6.53 x 1023 molecules?

1.08 moles

200

6CO2 +6H2O --> C6H12O6 + 6O2 How many moles of glucose are produced from 3.25 x 1021 molecules?

5.40 x 10^-3 moles

300

2Mg +O2 --> 2MgO How many molecules of magnesium oxide are produced from 1.21 moles?

7.29 x 10²³ molecules

400

2Mg +O2 --> 2MgO How many atoms of magnesium oxide are produced from 1.21 moles?

1.46 x 10²⁴ atoms

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 x 10¹⁵ molecules

8.30 x 10²⁴

Mixed Problems

100

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

4.04 g

200

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

91.25 g

300

Calculate the molar mass of potassium phosphide.

148.27 g/mol

400

Ammonia 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?

500

Write the formula for Iron (III) phosphate

FePO₄

Mass conversions

100

Mg + 2HCl --> MgCl2 + H2 What mass of Magnesium chloride is produced from 3 moles?

285.6 g

200

2KClO3 --> 2KCl + 3O2 How many grams of KCl are produced from 10.1 moles?

952.96 g

300

Determine the number of moles produced from 100.5 g of KClO₃?

0.82 moles

400

Calculate number of moles of sodium phosphide in 122.3 g?

1.22 moles

500

Calculate the mass corresponding to 5.78 moles of Tin (IV) oxide.

871.10 g

Miscellaneous

100

1 mole of any substance equals to how much mass?

Molar mass

200

How to convert moles to molecules?

Multiply by 6.022 x 10^23

300

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

What is 0.35 mol Cu(OH)2?

400

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

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

500

This questions is worth 1000 points! SURPRISE! Chlorine gas reacts with potassium bromide to produce potassium chloride and bromine gas. How many moles of potassium chloride can be produced from 5 moles of chlorine?

Cl₂ + 2KBr = 2KCl + Br₂

10 moles of KCl