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

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This video on acids and bases shows you how to calculate the pH, pOH, [H+], [OH-] of acid and base solutions. Acids and bases can be measured by their strength of pH and pOH. Tune in on this awesome acid base video.

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

AmberLynne

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

AS-wgct

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

markjackson

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

OlivyahMartini

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

fizzta_fizz

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!!

gabriella-emmaandoscar

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+.

haydnever

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

pipturbine

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

azzzza

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

aprilgilbert

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

anastasiacourson

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

jeffersonsteelflex

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

arikazuma

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

torlarsen

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

daylinlouw

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

joannagomez

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

c.kimberleyanne

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💕😊

melanieweck

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 !

demetriajohnson

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.

ajsim

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