Chemistry: Stoichiometry & Solutions

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Stoichiometry

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Calculation of reactants and products in chemical reactions.

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Mole Ratio

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Ratio between amounts in moles of any two compounds involved in a chemical reaction.

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Limiting Reactant

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Substance that is totally consumed when the chemical reaction is complete.

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Excess Reactant

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Substance that remains after a chemical reaction is complete.

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Molar Mass

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Mass of a given substance (chemical element or chemical compound) divided by its amount of substance.

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Avogadro's Number

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6.022 x 10^23, number of atoms or molecules in one mole of a substance.

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Dilution

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Process of reducing the concentration of a solute in solution, usually by mixing with more solvent.

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Concentration

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Amount of a substance per defined space; amount of solute divided by the volume of solution.

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Molarity (M)

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Number of moles of solute per liter of solution.

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Solution Preparation

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Process of mixing a solute and solvent to form a solution.