Chem(ph value and mole)

2010-02-26 5:42 am
I know it has some relationship between ph value and mole, please give me these data.

1. ph1=_____mol

2. ph2=_____mol

3. ph7=_____mol

4. ph10_____mol

5. ph14=____mol

And the second question I wanna ask is

Why more acidic substance will have a larger mole?

回答 (2)

2010-02-26 8:06 am
✔ 最佳答案
mole is not related to pH value..
becoz even a large number of mole, [H3O+] can be low if the volume is much higher than number of mole
(given that molarity = number of mole / volume)

therefore it should be molarity/concentration of H3O+ ion which is related to pH value
u can refer to the following formula
pH = -log[H3O+]

for example, if pH = 2, then [H3O+] = 0.01M, not mol

:-)

2010-02-26 21:47:00 補充:
M≠mol????

dun understand=_=

2010-02-26 21:48:42 補充:
oo..
u wanna ask molarity = mole??

the ans is not~
becoz molarity = mole / volume

/ <--"divide", not "or"
參考: me
2011-08-27 11:17 pm
Sorry, I checked the "mol" in the question is the concentration of the hydrogen ion (H+).

2011-08-27 15:18:57 補充:
the "mol" of hydrogen ion is related to pH value. Isn't it?


收錄日期: 2021-04-11 01:23:13
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100225000051KK01519

檢視 Wayback Machine 備份