Vocabulary
Stoichiometry
Easy problem solving
Harder problem solving
100

What is stoichiometry?

What is the study of quantitative relationships between amounts of reactants used and products formed in a chemical equation?

100

What is the first step to solving a Stoichiometric problem?

What is write and balance a chemical equation?

100

How many molecules of water are in a container that has 80.6 g of water?

What is 2.70 x 1024 molecules of water?

100

What is the percent by mass of each element in C12H22O11 ?


What is 42.1% C, 6.43% H, 51.5% O

200

What is a limiting Reactant?

What is a Reactant that is totally consumed in a chemical reaction, it limits how much product can be formed?

200

What is the second step in a Stoichiometric problem?

What is identify the given and the unknown?

200

How many grams of COwould you have if you have 7.6 x 1015 molecules of CO2?

What is 5.6 x 10-7grams of CO2 ?

200

Analysis of a compound determines that its percent composition is 42.07% Na, 18.89% P, and 39.04%O. What is the empirical formula for this compound

What is Na3PO4?

300

What is an excess reactant?

A Reactant that remains after a chemical reactions stops. The one that is left over.

300

What is the third step in a Stoichiometric problem?

What is change the given into moles?

300

If you put 1.3g of salt on your French fries, how many formula units of salt would that be?

What is 1.3 x 1022 formula units of salt?

300

Interpret this equation in terms of moles, molecules, atoms, and formula units: 2Al + 3CuSO--> Al2(SO4)3 + 3Cu 

2 moles/atoms Al, 3 moles/ f.u. CuSO4, 1 mole/f.u. Al2(SO4)3, and 3 moles/atoms of Cu

400

What is a mole ratio?

What is in any balanced chemical equation, the ratio between the moles of any two substances?

400

What is the fourth step in a Stoichimetric problem?

What is use your equation to get the mole ratio?

400

If you place 3.4 moles of glucose, C6H12O6, in a container how many grams would you weigh out?

What is 610 grams of glucose?

400

Sulfur dioxide is released into the atmosphere according to this equation: 2SO2 +2H2O + O2 --> 2H2SO4 Determine the mass sulfuric acid formed from 3.20 moles of sulfur dioxide

What is 314 g H2SO4 is produced?

500

What is a Hydrate?

What is a compound that has a specific number of water molecules bound to its atoms?

500

What is the fifth step in a Stoichiometric problem?

What is change the unknown into the correct units?

500

3.5 x 1024 molecules of P2Owould have a mass of how many grams?

What is 830 grams of P2O5?

500

Chlorine gas reacts with benzene (C6H6) to produce chlorobenzene (C6H5Cl) and Hydrochloric acid. Write a balanced chemical equation. Determine the limiting Reactant if 45.0g of Chlorine and 45.0g of benzene react. What is the mass of chlorobenzene that is produced?


Benzene is the limiting Reactant. 64.8grams of chlorobenzene is produced.

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