2007-07-17 04:54:05 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
"Chemicals" is correct... pH is defined as -log [H+], so if pH = 2, the hydrogen ion concentration is 10^(-pH) = 10^(-2) = 0.01.
Egawwad is right that HCl, which comprises stomach acid, is a monoprotic acid, but it is not just >90% dissociated, it is 100% dissociated because this is the definition of a strong acid. However, we don't need to know this to solve the problem. The answer is not just close to 0.01, it IS 0.01.
2007-07-17 05:14:22 · answer #1 · answered by mnrlboy 5 · 0⤊ 0⤋
pH is basically -log.
so the -log 2 = 10^-2
so the hydrogen ion concentration of stomach acid is 10^-2.
2007-07-17 05:04:59 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Approx. 10^-2 M
2007-07-17 05:29:55 · answer #3 · answered by ag_iitkgp 7 · 0⤊ 0⤋
[H]~0.01mol
HCl is a monoprotic acid and ~ more than 90% dissociation
so 0.01 mol is so closed but not accurat
2007-07-17 05:06:28 · answer #4 · answered by egawwad 1 · 0⤊ 0⤋
pH = -log [H+] 2 = 1x10^-2 14 = pH + pOH 14 = 2 + pOH; pOH=12
2016-04-01 08:39:08 · answer #5 · answered by Anonymous · 0⤊ 0⤋