2007-03-13 08:50:07 · 4 answers · asked by Tonia V 1 in Science & Mathematics ➔ Chemistry
Acetic acid is a weaker acid than HCl, which means it forms fewer hydronium ions. So, the lower concentration of hydronium ions means a higher pH.
2007-03-13 08:52:31 · answer #1 · answered by hcbiochem 7 · 1⤊ 0⤋
Hydrchloric acid is a strong acid, which means that it ionizes completely in aqueous soltions. This means you'll have 0.25 M protons from the hydrochloric acid.
Acetic acid (a/k/a vinegar) is a weak acid. Only part of it will ionize in water, therefore you're solution will be lower than 0.25 M in protons.
A higher concentration of protons means a more acidic solution. Since pH is -log[protons] the high concentration of protons will give you a lower pH (it's the minus sign that does it).
Thus, an equimolar acetic acid solution will have a higher pH than and its hydrchloric acid counterpart.
2007-03-13 09:02:01 · answer #2 · answered by Jon K 2 · 0⤊ 0⤋
pH of 0.25 M acetic acid is 2.07,and the pH of 0.25 M hydrochloric acid solution is 0.602
2007-03-13 08:58:23 · answer #3 · answered by Anonymous · 0⤊ 0⤋
A pH of 0.25 is a pH of 0.25, no matter what, so it is neither. It is the same.
2007-03-13 08:53:54 · answer #4 · answered by mrfixit64857 2 · 0⤊ 0⤋