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Quiz #6a

Last updated about 5 years ago

5 questions

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Question 3

3.

4FeS + 7O2 → 2Fe2O3 + 4SO2

In the above chemical equation, oxygen gas is combined in a stoichiometric ratio with iron (ii) sulfide. If you only had 22.5 moles of oxygen gas, how many moles of iron(ii) sulfide would you need to react it completely?

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Question 1

1.

2 C6H14 + 19 O2 → 12 CO2 + 14 H2O

Use the mole ratio, or other method, to calculate how many moles of carbon dioxide are produced when 10.5 moles of oxygen gas are reacted. Use the fast typing method or the hand drawn method to show your work.

Question 2

2.

6CO2 + 6H2O → C6H12O6 + 6O2

Above is one of the world's most important balanced chemical euqations, the equation that describes the production of glucose and oxygen gas from carbon dioxide and water within a plant cell.

Use the mole ratio, or other method, to calculate how many moles of glucose, C6H12O6, are produced if 15 moles of water are reacted with excess carbon dioxide.

Question 4

4.

Fe + CuSO4 → Cu + FeSO4

The above single replacement reaction is completely balanced. Assuming that you can completely react 52 moles of iron, how many moles of copper will be produced according to this balanced chemical reaction?

Question 5

5.

2Al(s) + Fe2O3(s) → 2Fe(s) + Al2O3(s)

This highly exothermic single replacement reaction between aluminum powder and iron (iii) oxide yields iron and aluminum oxide.

How many grams of aluminum powder do we need to completely react 100.0 grams of iron(iii) oxide?