Unit 3: Quantites In Chemical Reactions

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Last updated 4:32 AM on 6/20/26
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12 Terms

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Mole

A counting unit equal to 6.02 × 1023 particles

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Avogadro’s Number

6.02 ×1023 particles/mol

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Stoichiometry

Using balanced equation to calculate quantities

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Actual Yield

Amount of product actually produced

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Theoretical Yield

Maximum amount of product produced

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Percent Yield

Actual yield divided by theoretical yield x 100%

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Formula Unit

simplest ratio of ions in an ionic compund

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Percent Composition

Percent by mass of each element in a compound

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Empirical Formula

Simplest whole-number ratio of atoms

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Molecular Formula

Actual number of atoms in a molecule

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Limiting Reactant

Reactant that runs out first

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Excess Reactant

Reactant left over after the reaction