To add comments or start new threads please go to the full version of: Base
27th October 2011 - 09:16 AM
A base in chemistry is a substance that can accept hydrogen ions (protons) or more generally, donate electron pairs.
28th October 2011 - 04:25 AM
A soluble base is referred to as an alkali if it contains and releases hydroxide ions (OH−) quantitatively.
29th October 2011 - 05:52 AM
The Brønsted-Lowry theory defines bases as proton (hydrogen ion) acceptors, while the more general Lewis theory defines bases as electron pair donors, allowing other Lewis acids than protons to be included.
31st October 2011 - 03:02 AM
The oldest Arrhenius theory defines bases as hydroxide anions, which is strictly applicable only to alkali.
31st October 2011 - 12:42 PM
Common examples of acids include acetic acid (in vinegar), sulfuric acid (used in car batteries), and tartaric acid (used in baking).
1st November 2011 - 02:53 AM
In water, by altering the autoionization equilibrium, bases give solutions with a hydrogen ion activity lower than that of pure water, i.e. a pH higher than 7.0 at standard conditions.
2nd November 2011 - 03:01 AM
Examples of common bases are sodium hydroxide and ammonia.
3rd November 2011 - 06:45 AM
Metal oxides, hydroxides and especially alkoxides are basic, and counteranions of weak acids are weak bases.
PhysOrg scientific forums are totally dedicated to science, physics, and technology. Besides topical forums such as nanotechnology, quantum physics, silicon and III-V technology, applied physics, materials, space and others, you can also join our news and publications discussions. We also provide an off-topic forum category. If you need specific help on a scientific problem or have a question related to physics or technology, visit the PhysOrg Forums. Here you’ll find experts from various fields online every day.
To quit out of "lo-fi" mode and return to the regular forums, please click here