name which are strong acid, weak acids or strong base and weak base.
HI
Ammonia
Sulfuric acid
Calcium hydroxide
Hydrofluoric acid
2007-10-19 06:56:49 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Geomatic, get back to school....acid strength is NOT defined by pH. The only way you can use pH to estimate acid strength is if you have the same concentrations of a strong and weak acid.
Acid strength is a measure of the dissociation of the acid in water. Fully dissociated = strong acid, incompletely dissociated = weak acid. This can be recognised from the pKa values.. strong acids = 1, weak acids much much less than 1.
Similar reasoning for bases.
For aqueous solutions :
Sulphuric acid is strong, Hydrofluoric acid is weak
Calcium hydroxide is a strong base
Ammonia is a weak base
In its anhydrous form, HF is a strong acid!
2007-10-19 07:14:08 · answer #1 · answered by drjaycat 5 · 1⤊ 0⤋
Strength of an acid or a base is determined by its pH. Look up the pH for each of those and then you will know.
The pH scale goes from 1- 14. 7 is neutral. Below 7 is an acid. Above 7 is a base. The lower the number the stronger the acid. The higher the number the stronger the base.
2007-10-19 07:02:43 · answer #2 · answered by Lady Geologist 7 · 0⤊ 0⤋
Ammonia is a base and sulphuric acid is a strong acid. That's all I know.
2007-10-19 07:05:27 · answer #3 · answered by Kimberlee Taylor 4 · 0⤊ 0⤋