Calculating pH, pOH, [H+], [H3O+], [OH-] of Acids and Bases - Practice 

just wasted 2 hours of my life in lectures listening to my teacher and i cant make out what they on about, 11mins with you just cleared it up to my understanding. thanks sir

Learnt more here in 10 minutes than 2 hours at university!

This video honestly saved me from failing my chemistry test! You were so easy to follow, unlike other videos! Thank you so much!!!!

You are truly a life saver man. learned more from you in 10 minutes that an hour and a half lecture.

honestly we need more people like you in the school systems. You get to how to go about doing the problems in a very direct and expect manor, thank you so much!

This was so incredibly helpful. How my teacher explained it made absolutely no sense. Thank you SO much!!!

I have to thank you SO much for teaching the acid/base equations this way. It was incredibly helpful. With so many formulas to learn, this method puts everything into perspective and so much easier to understand. FINALLY the pH formulas make sense and are clicking! Thank you thank you!!

I've been freaking out about this concept for a test I have in an hour and this saved my life thank you so much!

I have a sub for 3 months who had no idea how to do chemistry and you sir have saved my life

Thank you! This was so much more simpler than all the other tutorials I watched :)

Nice explanation! Now that we are online learning through zoom, RU-vid has become my teacher. Thank you!

better explanation than my teacher and textbook!

You're a blessing my friend!

Huge help for a student studying in a foreign country. Cheers!

Thank you so much for explaining what my teacher assumed was obvious. You explained this so much more clearly than he did.👏

Finally!! something easy to follow. Thank you!

bless your soul. i have a chem final in less than two hours and you, my sir, have saved my ass.

You. Make organic chem so much easier. I don’t get it in class but watching your videos make it more simple. Thank you

THANK YOU SO MUCH you saved me I was so lost with the pH to H+ calculations and I finally know now how to input it into my calculator

This helped so much. When my teacher explained it, I felt like he was speaking Chinese or something. I get it now! Thank you!

You're helping me pass chemistry thanks dude, this is much appreciated

When my teacher does this, I want to kill myself, when you explain it just booms. Amazing how much better this is

You are an amazing teacher, I hope you are doing well in life wherever you are now!

I know this is late, but I noticed there were SEVERAL of you that didn't understand Mr. Post's Step 4. I am right along with you. Seeing that he didn't answer any of the other posts, I took it upon myself to look it up and figure it out. Thought I would share because I know there will be others that are just as confused. Okay, so on step 4 we are also solving for the inverse, or antilog of 10x -11.6 (or maybe just 11.6) Still just a little confused....sigh... Hope this helps. Follow these steps. I have a TI30XIIS scientific calculator and solved it in this manner. 1. Press (2nd) 2. Press (Log) 3. Press (-) 4. Press 11.6 5. Press " ) " to close the parenthesis. 6. Press (=) or (Enter) That gives you the inverse or antilog of -11.6 which gives you 2.51 x10-12. The number of H+.

wow..you are just awesome you are the kind of people we need in the world.keep it up..educate us we really appreciate it God bless you

THANK YOU SO MUCH! My professor didn't explain this very well even though it will be a major portion of our final exam. I'm so grateful for this easy explanation. I just have to memorize the formulas and I will be golden for the exam. Thank you, thank you, thank you!

A good help for the students. Very very thanks.

Dear SciencePost: You have to emphasize that those Equations/Formulas are only valid IF and ONLY IF the Temperature is 25-degrees Celsius / Room Temperature, and those equations are not valid if the temperature of Water or Aqueous Solutions is not at 25 Celcius. Thanks for the Video, Sir !

omg thank you so much! Why can't teachers explain it this way...

Thank you so much for this video! Helped a lot for a student from New Zealand!

It just makes sense all of a sudden. Thanks dude.

my teacher really fucked up...he left things out that i found here and understand soooooo much better. THANK YOU!!

Thanks sir cleared now After watching lots of videos finally cleared.

Thank you very much,you know I was just trying to understand what I wanted to and go offline but then something touched my heart to say thank you to the person who did this video,because it really helped. Thank you very much May God continue to bless you as you continue doing what you are doing to help others💕😊

Thank you so much for the clear explanation.

Love these vids !! Helping last minute crams

This has saved me so much time. It was truly helpful. Thank you

thank god... i was trying to calculate pH as per my online lecture describes it: pH= -log10(H+) I didn't understand that I didn't need to put in the "10". I spent 30 minutes trying to figure this out before finding you and seeing my error in 5 seconds.

Very helpful! My textbook doesn't even have one simple example. THANK YOUUUUU!

Wow, you’re a good teacher. That means I literally just suck at learning chemistry.

Wow. Thanks. I learned a lot. This is the best so far. MCAT is waving.

Ur awesome u helped me figure out 2 problems on my biology quiz thank u

Thank you! You were a lifesaver with my homework!

thanks for that!! its more easier to learn this by watching this video

Dear science post teacher, you are the bomb! Thank you....thank you.,

finally a lesson i understand!! thanks so much

Thank you so much for this video. this was so much more clearer than my book!

modern day hero!

This video helped me a lot...Thanks science post.

very useful video, which helped me to clear my doubts. many thanks sir I love the way you are talking.

Very good and clearly presented

Thank you for the great video 🥳 I have been struggling with this, you broke it down perfectly 👌

THANK YOU SOOOOOOO MUCH. YOU ARE A LIFE SAVER

great video! Just a heads up for the sig digs.. pH 3.2 is one significant digit so the [H+] should be 6*10^-4 and not 6.3 thanks

Thanks! Got an exam tomorrow and I didn't listen to this topic in class cause I hate calculating shits and numbers.

Thank you so much for clearing this up!

VERY HELPFULL THANK YOU AND GOD BLESS

Thank you very much best teacher best video!!

Hi, I was just wondering about your answer for [OH-] in the question "Calculate the pOH, [H+] and the [OH-] of a HCl solution with a pH of 3.2?" What I was wondering about, because I am taught to be very specific, is your final answer to [OH-], which you got as 1.58x10^-11 which shouldn't it have been 1.587301587x10^-11 => 1.59x10^-11 (3sf) ?

NO ENTIENDO INGLES PERO PERO AUN ASI ME AYUDASTE MUCHISIMO.LOS NUMEROS SON UN IDIOMA UNIVERSAL.SALUDOS DESDE ARGENTINA trank you!

Awesome tutorial man, really cleared some things up for me. Cheers!

absolutely helpful

how did you get 2.51 x 10-12 on the inverse log? I cant figure out how you calculated this. Can someone please explain this to me? This makes no sense. ;(

thank you this helped A LOT!!! I feel behind and you helped me get caught up

Holy fuck dude, ur honestly on par with Tyler Dewitt at explaining stuff. I learned more than my teacher does in an hour

wow am glad with this video i just watched.its interesting

This helped me a lot! Thank you!

Great video with great explanations!

This really helped a lot, very clear. Thank you very much!

Thank you very much, it served me a lot

This has really helped so much thanks

You did a great job on this video. I'm not always sure how to use my T1-84 C Silver Plus calculator. So, why not buy one and do a whole video just on using that? I'm sure you would do an awesome job. Considering there isn't much out there on using the calculator, but you did a better job than most! Thanks. :) BTW, you cleared it all up on this topic. So thanks so much! M.

Thanks dude sir, that was really helpful

Super helpful video!

Thank you so much, very helpful.

Thank you Sir, you really helped me.

great video, really helped me

Thanks you 're great

It’s God that sent me here I’m grateful Thankyou so much

Great vid man thanks a lot ! I understand it !

Very well explained

OMG YOU ARE A LIFESAVER!!!!!!

Thanks so much man, I aced my quiz

thank you so much!!!! this video really help

thanks men. you helped me a lot

Good

Thanks good professor

wow finally, thank you so much

May I ask what app you are using? My TI-83 calculator isn't giving me the options you're has. Thank you so much for making such a helpful video.

Thank you. This is better than my Science Teacher. Also watching your last video. You said "Dude" so much, I facepalmed everytime near the end of the video XD

can't say how good it feels to finally fucking get this! thank you!!

thank you this was so helpful

Thx dude this helped me understand it

Very clear! Thanks

Great video

H2oDelirious spotted.... Thx alot btw dude! :D

Thassnsnskkss so MUCH omggg I understood NOTHING when my teacher taught me

you just saved me !!!! Thanks

I wish you would have explained how you calculated step 4. makes no sense to me. im super confused and you dont explain how you calculated that number. i cant get that on my calculator. maybe you calculated wrong?

Thanks duuude. thats rad man