Someone correct me if i'm wrong but you should only memorise a couple of strong acid/bases and a couple weak acid/bases
Strong acids -> HCl, HNO3, H2SO4
Weak Acids -> Citric acid, Acetic acid (CH3COOH)
Strong bases -> NaOH, KOH
Weak Bases -> NH4OH
yeah i dont know many bases lol
But the point is so you can give at least 1 example of each different acid/base, they normally appear in multiple choice or a 1 marker, i have never seen a question ask for more than 2 examples of the same class (as in strong acid, strong base, weak acid, weak base)
Yeah household cleaners are great examples for strong bases.
A concentrated acid is simply lots of particles of the acid (can be ionized or un-ionized <- if thats even a word) per unit of volume.
There are 4 kinds you need to remember
Concentrated strong acid
Concentrated weak acid
Dilute Strong acid
Dilute weak acid,
Oh and it can either be acid or base doesn't matter but there is a dot point in the syllabus asking you to recognise what each of those 4 terms mean and in the conquering chemistry or jacaranda (i forgot which book) there is a diagram explaining the difference between those 4.
There is no pH that dictates whether an acid is strong, an acid is strong if it ionises 100%, like HCl and HNO3, they turn into H+ and Cl- or NO3- everytime they are dissolved into water, thats what strong means, ionize 100% into water however weak acids only partially ionize such as carbonic acid. obviously a pH of 1 is probably a strong acid and a pH of 3 or above is a weak acid but there is no definite line in the pH range that dictates whether one is strong or weak, the difference between strong or weak is purely how the acid or base ionizes in water
