Hydrochloric acid is more acidic than nitric acid (not in water or glacial acetic acid).
The following are pK 1 values of some acids:
Selenoic acid:-3; Chloric acid: about-2.7; Sulfuric acid: about-3; Nitric acid:-1.38;
Hydrochloric acid:-6.1; HBr:-9； Hi:-9.5; HF:3. 18；
Silicic acid: 9.77; In addition, perchloric acid is completely dissociated in water.
Sulfuric acid is the strongest of the three strong acids. Hydrochloric acid and sulfuric acid are both strong acids, which are almost completely ionized in aqueous solution, so it is impossible to compare the acidity in aqueous solution, and it can only be compared in a solution (such as CH3COOH) which is more difficult to accept protons than water, in which the acid with strong proton H+ ability is more acidic under this condition. According to relevant measurement data, the order of acidity from strong to weak is sulfuric acid >: hydrochloric acid >: nitric acid.
Attachment: PKa values of HClO4, H2SO4, HCl and HNO3 in pure acetic acid solution are 5.8, 8.2, 8.8 and 9.4 in turn.
Ka= acid ion concentration * hydrogen ion concentration/acid concentration in solution
PKa=-lgKa
The smaller the PKa value, the stronger the acidity of the corresponding acid.
Simply look at sulfuric acid dibasic acid. Sulfuric acid with the same concentration must be more acidic than hydrochloric acid and nitric acid.
Hydrochloric acid and nitric acid are difficult to judge. Look at what others wrote on it.