how do you tell a strong acid from a weak acid ? and how do you tell a strong base to weak base?

Question

how do you tell a strong acid from a weak acid ? and how do you tell a strong base to weak base? detailed plz

Answer 1

Strong acids will dissociate completely in solution, weak acids will not. Similarly, strong bases will completely dissociate in solution, whereas weak ones will not.

There are six strong acids - HCl, HBr, HI, HNO3, H2SO4, HClO4. All other common acids are weak. As for the strong bases, all of the alkali metal hydroxides and the heavier alkaline earth metal hydroxides (Sr, Ba) are strong. The rest are weak.

Answer 2

Let me see if I remember this correctly... Acid is going to be a proton donor, or electron acceptors Pretty much ANYTHING with H at the BEGINNING of the name will be acidic - HCl, HCN, H2SO4, H3(PO4)2, They are going to have a H+ that they want to give away. When the H goes away from it, the electrons that were shared between the H and the rest of the compound are BOTH going to stay with the compound (even the one that belongs to the H), hence electron acceptors. Bases: Proton acceptor, electron donor. Want to gain that H+, and lose some electron density to the H when it gains it. Sometimes have H @ the end, I guess? I can't even remember if there was a good rule for this or not. Strong acids: Dissociate 100% in water There are either 4 or 6, don't remember though The ones I know: HOCL, HCl, HI, HF (I think), maybe H2SO4. There are a couple more than that. Strong bases: Dissoc. 100% in H2O any group 1 or 2 metal with OH or (OH)2 is going to be a strong base. There are a few more that are exceptions (that are not group 1 or 2 metals with OH, but are still strong bases. Google that. I'm sure you can find the specific ones. If I'm not mistaken, the stronger acids are going to be the ones with the more electronegative part that isn't H. So whatever the other part is, the closer it is to F, the more strongly acidic it will be.

Answer 3

for acids, the stronger the acid the more H+ ions it will have in the aqueous solution to react. for alkalis (base) its OH- ions.

Answer 4

Measure the PH.