Stoichiometry and Chemical Reactions Quiz unit 10

When you calculate the amount of product that will form, it is the ............yield.

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The first step in most stoichiometry problems is to...

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The calculation of quantities in chemical reactions is called...

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The mole ratio is determined from....

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What are conserved in a chemical reaction.

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The .....reactant is the one that is used up first.

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Mass of products .....the mass of reactants (law of conservation).

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Moles of O₂ to moles of Al₂O₃

What is the ratio of moles of O2 to moles of Al2O3?

b. How many moles of oxygen are required to react completely with 14.8 moles of aluminum?

c.What mass of Al2O3 can be formed from 7.25 g of Al?

d. How many grams of Al2O3 can be formed from 0.735 mol Al?

e. If 1.25 mol Al reacts with 1.25 mol O2, how many moles of Al2O3 are produced?

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2KClO3 → 2KCl + 3O2

a. How many moles of O2 can be formed from 13.2 g KClO3?

b. How many liters of O2 can be formed from 8.65 g KClO3?

c. How many molecules of O2 are produced along with 6.35 g KCl?

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Fe2O3 + 3CO → 2Fe + 3CO2

84.8 grams of iron(III) oxide reacts with excess carbon monoxide to give 54.3 grams of iron. What is the percent yield?

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