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| 04 Jun 2014 09:49 PM |
first detailed explanation gets 615 tix, all I have left
PROBLEM: Find the concentration of hydrogen ions (H+) in moles per liter when the pH of the liquid is 10.13
looks easy I just don't know what to input in my calc |
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wazap
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| Joined: 29 Jun 2007 |
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| 04 Jun 2014 09:50 PM |
dont pay me this time
10^-pH = [H+] in moles/liter
10^-10.13 will get you the answer |
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| 04 Jun 2014 09:51 PM |
ty waz also ^ = exponential or multiplication? |
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wazap
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| 04 Jun 2014 09:52 PM |
| ^ always means exponential. It never means multiplication. |
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| 04 Jun 2014 09:54 PM |
Alright, thanks. I've seen it used both ways before, that's why I was unsure. Answer is 7.41310241 E-11, correct?
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wazap
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| 04 Jun 2014 09:55 PM |
| Awesome, thanks again, can't tell you how much I appreciate it. |
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| 04 Jun 2014 09:55 PM |
ya
always remember
pH is between 1-14
if you get one below 1 or above 14
it's wrong |
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| 04 Jun 2014 09:56 PM |
superspy are you taking chem anytime soon
cus if you are
you'll learn thisssss
it's easier in chem for whatever reason than when i did it in math
idk i hate math |
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wazap
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| 04 Jun 2014 09:57 PM |
welcome @super
@European
0-14
And also I dont mean to confuse ppl but.
2 moles of H2SO4 in 1 liter of water
pH = -2 |
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Mixernxer
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| 04 Jun 2014 09:57 PM |
Lol wtf
H= ions is for bases.
ph= concentration of h30 ions.. |
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| 04 Jun 2014 09:57 PM |
| oOoOoOoook then dont make it hard for superspy omg |
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| 04 Jun 2014 09:58 PM |
thanks guys I had to pay for my schooling this year since my dad got laid off and stuff I didn't have the extra cash to pay for chem, that's partly why I've never seen this stuff before |
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wazap
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| 04 Jun 2014 09:59 PM |
@Mixer thats OH-
And I screwed up my calculations its not -2 but its still negative...
But FOR ALL PURPOSES pH IS FROM 0-14. |
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| 04 Jun 2014 09:59 PM |
it's ok
im here for the easy stuff in chem
and a bunch of other people who'll make it harder for you are here too |
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| 04 Jun 2014 10:00 PM |
dont confuse him with negative pH
Molarity of 2 is something new 2 him |
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wazap
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| Joined: 29 Jun 2007 |
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| 04 Jun 2014 10:02 PM |
| Ya I didnt mean to, but just a head's up because I came across it once and it confused me, even though it was correct. |
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Aczero
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| 04 Jun 2014 10:02 PM |
ya i looked it up it exists
but it's really uncommon |
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Mixernxer
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| 04 Jun 2014 10:04 PM |
sorry got confused I forgot h+ is considered h30
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| 04 Jun 2014 10:04 PM |
wait how can ph be negative wouldn't that be like impossible because it doesn't work in current environment and humanity and stuff
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| 04 Jun 2014 10:05 PM |
yes negative pH doesnt work for humanity
that's a concept for another day
dont even know myself |
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| 04 Jun 2014 10:06 PM |
oh dang alright, you guys blew my sophomore mind xd thanks again guys |
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Mixernxer
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| 04 Jun 2014 10:06 PM |
| If the molarity of hydrogen ions is greater than 1, you'll have a negative value of pH |
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