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E

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effusion

The escape of a gas through an orifice.


Gases ... Effusion of Gases ... Methane ...
Gases ... Effusion of Gases ... Nitrogen ...
Gases ... Effusion of Gases ... Oxygen ...
Gases ... Effusion of Gases ... Carbon Dioxide ...

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electrode

In an electrochemical cell, a surface on which oxidation or reduction occurs.


Decomposition Reactions ... Electrolysis of Water ... Sodium Sulfate Solution ...
Decomposition Reactions ... Electrolysis of Water ... Sulfuric Acid Solution ...
Electrical Properties of Matter ... Electrical Conductivity ... Introduction (mostly animations) ... Liquid Salt ... Movie ...

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electrolysis

The use of an electrochemical cell to drive a reaction that would otherwise be non-spontaneous.


Decomposition Reactions ... Electrolysis of Water ... Sulfuric Acid Solution ...
Decomposition Reactions ... Electrolysis of Water ... Animation of Electrolysis ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... HCl ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... NaOH ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... NaCl ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... Distilled Water ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... tin(IV) chloride ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... tin(II) chloride ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... sodium nitrate ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... magnesium nitrate ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... aluminum nitrate ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... potassium nitrate ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... calcium nitrate ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... cobalt(II) nitrate ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... nickel(II) nitrate ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... copper(II) nitrate ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... zinc nitrate ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... strontium nitrate ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... silver nitrate ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... barium nitrate ...
Decomposition Reactions ... Electrolysis of Aqueous Solutions ... lead(II) nitrate ...

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electrolyte

A substance that dissociates in water to form ions, thus increasing the extent to which the liquid conducts electricity.


Electrical Properties of Matter ... Electrical Conductivity ... Introduction (mostly animations) ... Weak Electrolyte ... Movie ...
Electrical Properties of Matter ... Electrical Conductivity ... Introduction (mostly animations) ... Strong Electrolyte ... Movie ...
Electrical Properties of Matter ... Electrical Conductivity ... Solutions ... Sugar Water ...
Electrical Properties of Matter ... Electrical Conductivity ... Solutions ... Aqueous Sodium Chloride ... Picture from earlier Animation (a strong electrolyte) ...
Electrical Properties of Matter ... Electrical Conductivity ... Solutions ... Hydrochloric Acid ... Picture from earlier Animation (a strong electrolyte) ...
Electrical Properties of Matter ... Electrical Conductivity ... Solutions ... Aqueous Sodium Hydroxide ... Picture from earlier Animation (a strong electrolyte) ...
Electrical Properties of Matter ... Electrical Conductivity ... Solutions ... Vinegar (Acetic Acid) ... Picture from earlier Animation (a weak electrolyte) ...
Electrical Properties of Matter ... Electrical Conductivity ... Solutions ... Aqueous Ammonia ... Picture from earlier Animation (a weak electrolyte) ...

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electrostatic attraction

The attraction between ions of opposite charge responsible for holding together ionic compounds.


Electrical Properties of Matter ... Electrostatic Attraction ...

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end point

The point in a titration at which the indicator changes color.


Stoichiometry ... Acid-Base Titrations and Animation ... Acid-Base Titration Animation ...
Stoichiometry ... Redox Titration and Animation ... Highlights of a Redox Titration ...
Stoichiometry ... Redox Titration and Animation ... Redox Titration Animation ...
Double Exchange Reactions ... Acid-Base Titrations and Animation ... Acid-Base Titration Animation ...

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equivalence point

The point in a titration at which the amount of the reactant being added stoichiometrically matches the amount of the reactant initially present.


Stoichiometry ... Acid-Base Titrations and Animation ... Acid-Base Titration Animation ...
Stoichiometry ... Redox Titration and Animation ... Redox Titration Animation ...
Double Exchange Reactions ... Acid-Base Titrations and Animation ... Acid-Base Titration Animation ...

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exothermic

Describing a process that releases heat to the surroundings.


Combination Reactions ... Reactions of Metals + Iodine ... Zinc Iodine Reaction ... Movie of the reaction ...
Combination Reactions ... Reactions of Metals + Iodine ... Aluminum Iodine Reaction ... Movie of the reaction ...
Single Exchange Reactions ... Thermite Reaction ... Movie ...
Single Exchange Reactions ... Thermite Reaction ... Oxidation of Glycerine by Potassium Permanganate ...

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F

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© 1997 Division of Chemical Education, Inc., American Chemical Society. All rights reserved.