[cs_content][cs_section parallax=”false” separator_top_type=”none” separator_top_height=”50px” separator_top_angle_point=”50″ separator_bottom_type=”none” separator_bottom_height=”50px” separator_bottom_angle_point=”50″ style=”margin: 0px;padding: 45px 0px;”][cs_row inner_container=”true” marginless_columns=”false” style=”margin: 0px auto;padding: 0px;”][cs_column fade=”false” fade_animation=”in” fade_animation_offset=”45px” fade_duration=”750″ type=”1/1″ style=”padding: 0px;”][cs_text]The Acidic Environment > 4. Acid/Base Definitions >
Describe the relationship between an acid and its conjugate base and a base and its conjugate acid
Identify conjugate acid/base pairs[/cs_text][/cs_column][/cs_row][/cs_section][cs_section parallax=”false” separator_top_type=”none” separator_top_height=”50px” separator_top_angle_point=”50″ separator_bottom_type=”none” separator_bottom_height=”50px” separator_bottom_angle_point=”50″ style=”margin: 0px;padding: 45px 0px;”][cs_row inner_container=”true” marginless_columns=”false” style=”margin: 0px auto;padding: 0px;”][cs_column fade=”false” fade_animation=”in” fade_animation_offset=”45px” fade_duration=”750″ type=”1/1″ style=”padding: 0px;”][cs_text]
- Conjugate base: The substance formed from an acid when it gives up a proton.
- The conjugate base of a strong acid is an extremely weak base, which is too weak to react with the solvent.
- The conjugate base of a weak acid is a weak base.
- Conjugate acid: The substance formed from a base when it accepts a proton.
- The conjugate acid of a strong base is an extremely weak acid, which is too weak to react with the solvent.
- For example, when hydrochloric acid (a strong acid) reacts with water (a weak base), a hydronium ion (a strong conjugate acid) and a chloride ion (a weak conjugate base) are formed:
- In the above example, hydrochloric acid and the hydronium ion are a conjugate acid-base pair, while water and the chloride ion are another conjugate acid-base pair.
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