the difference between and acid and a base ?
Formula and name of a weak acid. thanks!
2006-10-11 02:43:47 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
An acid releases H+ ions in solution with water, while a base releases OH- ions. Hydrofluoric acid, HF, is defined as a "weak acid," but bear in mind that it is still highly corrosive. A "weak acid" is one that does not fully dissociate in water.
2006-10-11 02:48:49 · answer #1 · answered by DavidK93 7 · 1⤊ 0⤋
There are a couple of different models used to determine if a compound is an acid or a base. Since I deal with water chemistry, and judging by the level of your question, I suspect that you are a high school student, this will be an adequate method to use.
An acid is a compound that when disolved in water will generate free hydrogen ions (that are actually most likely in the form of H3O+ called hydronium ions) while a base is a compound that when dissolved in water will generate free OH- ions called hydroxide ions.
Weak acids are acids that do not "fully" release all the free hydrogen ions. I say fully, because no acid is truly strong, even nitric acid will not dissassociate the H+ once for ever 10^11 that it does, but that is such a small number. Strickly speaking, in 25 degree C water, if an acid releases few H+ then it does not, it is called a weak acid.
The most common of these is acetic acid (you may know of it as vinegar) with the molecular formula CH3CO2H.
Acetic acid is written this way because it is an organic compound (consisting of carbon and hydrogen with select other elements) and this method tells you how the molecule is arranged.
Ken
2006-10-15 03:51:53 · answer #2 · answered by Ken B 3 · 0⤊ 0⤋
By Lewis's Definition:
An Acid is one which dissociates to give, very specifically hydronium ions in solution, that is H3O+, where as a base is one which dissociates to give hydroxide ions, OH-.
On the pH scale:
7=neutral=water
0-7=acid(the lower the stonger)
7-14=base(the higher the stronger)
There are other definitions of acids, but that is the most common one. A weak acid is ethanoic acid, CH3COOH
2006-10-11 09:59:21 · answer #3 · answered by Anonymous · 1⤊ 0⤋
An acid is a compound which when dissolved in water yields hydrogen ions as the only positively charged ions, whereas a base is a compound which reacts with the hydrogen ions of an acid to give salt and water only.
name and formula of a weak acid is = carbonic acid- H2CO3
hope i cud help u.
2006-10-11 09:59:08 · answer #4 · answered by Nikki 2 · 0⤊ 0⤋
Acid is a proton donor or an electron acceptor or it donates H+ ions
eg : Weak Acid- CH3CO-OH(acetic acid), H2CO3(Carbonic acid)
Strong Acid: HCl, H2SO4
Base is a proton acceptor or an electron donor or it donates OH- ions.
eg: Weak Acid: NH4OH(Ammonium Hydroxide)
Strong Base: NaOH,KOH
2006-10-11 09:53:58 · answer #5 · answered by Amarbir Singh 2 · 0⤊ 0⤋
pH is the measurement of acidity. It is an expression of the ratio if hydrogen ions (H+) to hydroxyl ions (OH-) in water solution.
An acid is one that causes the balance of hydrogen ions to increase and hydroxyl to decrease. Hydroflouric acid, HF, is a weak acid that dissolves glass. Another weak acid is aluminum ions (Al+++), which have such a strong positive charge that they act like hydrogen ions.
2006-10-11 09:50:44 · answer #6 · answered by poorcocoboiboi 6 · 0⤊ 1⤋
Weak acid = ethanoic acid
formula : CH3 CO2H or CH3 COOH
2006-10-11 09:50:34 · answer #7 · answered by charmed_deenesh 1 · 0⤊ 0⤋
acid are strong than base
2006-10-11 09:48:23 · answer #8 · answered by Anonymous · 0⤊ 3⤋
PH value <7 base
PH >7 acid
iam not sure check it
2006-10-11 09:52:09 · answer #9 · answered by kumar k 2 · 0⤊ 1⤋
AN ACID IS LESS DENSER AND LESS REACTIVE THAN A BASE
2006-10-11 09:47:53 · answer #10 · answered by MANSI R 2 · 0⤊ 3⤋