pls explain me why the sulphuric acid in low ph it is more corrosive?

Answer 1

Well Sulfuric acid is diprotic meaning it has two hydrogens to donate. So for every sulfuric acuid it donates two hydrogens so it can nuetralize two sodium hydroxides while hydrochlorice acid can only neutralize one sodium hydroxide molecule. So it is what we call two equivalents.

Answer 2

You might know that pH of 6 represents a certain concentration of hydronium ions (ten to the minus 6 mols/liter). A pH of 5 represents 10 times the concentration, and a pH of 4 represents 100 times the concentration that a pH of 6 does.

You can see that as the pH goes down, the concentration of the corrosive ion in the acid goes up rapidly. A pH of 3 represents 1,000 times the concentration represented by a pH of 6.

Answer 3

in terms of an exact answer, this would possibly not be particularly trouble-free to come to a decision. Sulfuric acid is a dibasic acid, and the 2nd equilibrium HSO4-> SO4= + H+ has a Ka of roughly 0.01. hence for the given H2SO4 concentrations, partial dissocaiation could must be taken under consideration, fairly on the decrease molarities of your question. to come across the pH, you start up with the above equation. HSO4- initially = molarity of further H2SO4; the 1st H+ is particularly dissocated, and little if any H2SO4 is left. If x moles/liter dissociates, at equilibrium, [HSO4-] = [(H2SO4)o - x] [SO4=] = x [H+] = [(H2SO4)o +x] and K2 = [H+][SO4]/[HSO4-] so if (H2SO4)o= .25 M 0.01 = (0.25+x)(x)/(0.25-x) x= 0.01 appx, and [H+]=0.26 M..... So pH = 0.6 appx

Answer 4

pH is a measure of the hydronium ion concentration in water. pH is calculated by taking the negative log of the hydronium concentration, so as hydronium concentration goes up, pH goes down. hydronium is the dangerous stuff of aqueous acid, so in high concentration (low pH), it's more corrosive.

Answer 5

acids are very corrosive. the lower the pH value of an acid, the more corrosive it becomes.
good luck!!

Answer 6

ph is a measure of H+ ion concentration.sulphuric acid is a diprotic acid,donates 2 H+ ions.It is more acidic,has more H+ ions if Ph is lower.corrosion increases in presence of H+ ions.