Stoichiometry
- Avogadro's Number
- Calculating Yields
- Formula Mass and Molar Mass
- Gas Stoichiometry
- Laws of Chemical Combination
- Limiting Reagents
- Mole Calculations
- Ratio of Atoms in a Compound
- Solution Stoichiometry
- Stoichiometry
A balanced chemical equation tells the number of atoms and/or molecules of each element and compound involved in the reaction. The coefficients indicate the ratio in which the reactants react to obtain a fixed ratio of products.
NOTE: You can only compare 2 ideas at once
How many moles of oxygen are required to react if you have 5 moles of magnesium?
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4.84g of lithium nitride and water react according to the equation below. Calculate the theoretical mass of
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All units have to match. To do this, the moles need to be converted to grams.
Iron (II) sulphide reacts with oxygen to produce iron (III) oxide and sulphur dioxide. What mass of iron (II) sulphide is needed to react with 6.2g of oxygen?
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See Ate, Ite, and Ide
Equation:
Masses:
All together:
Zinc is reacted with hydrochloric acid to produce hydrogen gas and zinc chloride. If 10.0g of zinc was reacted, calculate the number of moles of zinc chloride produced.
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Equation:
Moles (the question asks for moles, not mass):
All together: