im a harvard student and i still watch your videos
@budgiebreder14 жыл бұрын
ok this explains everything! my chem teacher is pretty good but she goes through things very quickly and kinda rushes through it all. you kinda slow it down thx ^^ i have an exam on this tomorrow and if there's one question i think i'm gonna get close to right it's this one! - *looks at your other videos*
@DarleenHope11 жыл бұрын
Seriously, I don't know what I would have done without this,THANK YOU SOOO MUCH!!!!
@7906jun11 жыл бұрын
I forgot how helpful these videos were ! I should have started watching them little earlier now there is like a week left for the AP exam ..
@mohsinuk200014 жыл бұрын
Ive been looking all over the internet for an answer you provided
@HT-rq5pi11 жыл бұрын
@Simon Benson H2S04 does not complete ionise to give up 2 protons. The only reason its a strong acid because H2S04 + H20 --> H3O + HSO4 goes to completion HSO4 + H20 --> H30 + SO4 has an equilibrium that lies to the left.
@danieljohnson130211 жыл бұрын
To get the pH or pOH you take the negative log of the H+ or OH- concentrations. log10 is standard. So if you have a H+ concentration of -7, you take the negative log (base 10) which equals 7, giving you the pH. another way to look at it is, "p" stands for log10.
@koniginator15 жыл бұрын
The volume is the amount of the base, NaOH added. As more NaOH is added, more OH- is entering the solution, changing the pH.
@jlSQUINTZ14 жыл бұрын
@Gaiacarra because the pH scale is in logarithms so when you go up by 1 ph, ur going up exponentially, i think? idk lol
@sakuraxblossoms14 жыл бұрын
THis is a very good explanation but I wish you would show actual problems and examples and such but you are not my teacher and what are you doing is already more that enough. Thank you!
@sovietlemon12 жыл бұрын
Sodium chloride- also known as table salt, is definetly formed during the neutralisation reaction.
@ThomasGardner1232112 жыл бұрын
OMG!! you can download this, you'll find the download when you click show more!!!! I guess to help other people do well, thumbs this up so people know this...
@SgtMantis10 жыл бұрын
IDK why, but many of the Khan vids are without sound when i try to play them. I don't have this problem with any other channel, I wonder what YT is up to with this.
@AgOrganic14 жыл бұрын
I'm having lots of trouble with a back titration report, can you make a you tube video on back titration using Nitrogen fertiliser, NaOH and HCl?
@missfun2414 жыл бұрын
hey, it was an interesting video, but juz 1thing! In my sylabus, v have 2 find pH at certain points ( after addition of certain amount of NaCl ). So, it would be great if u could do a video about tat calculation aso. thank u sooo much!
@FangsShadow11 жыл бұрын
Could you exchange the HCl with H2SO4 of a molarity of 0.5 and still get the graph to equal 7 at one litre NaOH?
@WizKid240913 жыл бұрын
@dasraiser Yes. HCl + NaOH -> H2O + NaCl......most acid-base reactions yield a salt and water.
@maxifitness752611 жыл бұрын
Wow! U were born 4 this Thnx for the vidz. Could u plzzzzzz do sum more videos based on the chaptr with sigma bonds
@dasraiser13 жыл бұрын
im i correct that the example given in this video also produces the salt NaCl?
@petereberle423010 жыл бұрын
How do you find the Half Equivalence pt. For a strong acid/strong base titration though?
@MopTopRock9 жыл бұрын
so this one guy can tutor in all subjects?.............
@prabhanshukatiyar46358 жыл бұрын
+MopTopRock ya
@arstgkneio12 жыл бұрын
im still not sure about titration in general. how do you know which type of indicator to pick? For instance, if you have the titration of a strong acid and a weak base, then are you going to use an indicator with a transition interval that's far below 7, around 7, or far above 7?
@Swyzmartinsk12 жыл бұрын
At 07:30 he say's "you're going to have half a molar of NaOH left". where did he get that from?
@HKISfreak112 жыл бұрын
Do you have videos on how to do the math of titration?
@Pr0x1mo15 жыл бұрын
The equivalence point is the same thing as an inflection point, right?
@arstgkneio12 жыл бұрын
if it's a strong acid and weak base, wouldn't there be more strong acid, therefore a lower pH, therefore, you would have to use an indicator with a pH below 7?
@Gaiacarra14 жыл бұрын
But... why does the curve suddenly shoot up like that?
@sciencenerd76393 жыл бұрын
thank you
@wshraim12 жыл бұрын
If you have strong acid and a weak base, then you would use pH above 7 (OH)
@magaligendebien56338 жыл бұрын
how do you visually know that your pH is at 7?
@cypress428611 жыл бұрын
@ 0:54 where did you get -log 10?
@carolinagasolina201213 жыл бұрын
you da best!
@prabhanshukatiyar46358 жыл бұрын
If i take 10M HCl, then the pH will be -1, is it possible?
@arstgkneio12 жыл бұрын
lol, is "sop up" a technical term?
@derekmarlor599211 жыл бұрын
its log base 10 or just log
@RushilKoshti4 жыл бұрын
log is generally base-10.
@wizard101er24 жыл бұрын
hahah dumb blonde
@StudyWithM3E4610 жыл бұрын
Why isn't the pH of HCl 1?
@APchemistrycourse6 жыл бұрын
this is what I was thinking of because the pH of HCl is pH=1
@TocoBellManger7 жыл бұрын
"sopped up"
@rezanova13 жыл бұрын
I
@aymansays12 жыл бұрын
it is now :p
@prabhanshukatiyar46358 жыл бұрын
WoW
@maxarudy14 жыл бұрын
can you make a video that really simplifies titration for the stupids out there like me? :-)