How to find pH, pOH, H3O+, and OH- STEP BY STEP
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- Опубліковано 29 чер 2024
- Each step on how to find pH, pOH, [H+], and [OH-] is all explained in this video. Plus I'll even show you how to plug it into your calculator, and the specific significant figure rules with pH and pOH and at the end I'll give you a summary of when to use each formula!
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The pOH, pH, H+ and OH- concentration conversions are at 3:04 You're so clutch for this!
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Alondra Lozano same problem
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In 2nd Q: problem b -- where did you get [OH-] = 3 x 10^-6? I got 10^-5 M?
I did too
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Hello! This was a really helpful video. I'm currently in chemistry Higher Level in the IB system and we are learning about weak acid and base dissociation constants (ka, kb, pKa, pKb) and their calculations and I was wondering if you had a video about that or if you can make one as I'm finding them rather difficult.
Perfect timing on my next Live session this Sunday at 12PM PST, I will be going over how to find the Ka and Kb. ua-cam.com/video/8ZLifdOOzqA/v-deo.html
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How did she get 3x10^-6? For oh-? When I did it, I got 3x10^-24
Same, honestly I kinda wished she had showed the calculator 😢
I show the calculator part in my new series here: ua-cam.com/video/XnxBPM3XTWo/v-deo.html
I got the same result. If you have the pH already, to find pOH just substract the pH=8.5 to 14 (pOH = 14 - 8.5 = 5.5). Once you found pOH= 5.5, you can find OH. To find OH use this formula [OH-]= 10 ^- pOH.
[OH] = 10^-5.5 = 3 x 10^- 9 or 3.1 x10^-9. The sig fig will depend on your professor really.
Thanks
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Aw thanks Chloe, so happy it's a lot easier now :)
How do you calculate for these (pH, pOH, H3O+, and OH-) if a value in M is given?
Im at a 26% in my chem class and I wish I had found you earlier 😭
How u doin
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Can u explain further how’d you find the pH 3.39?
Hi Melissa, I was wondering if the part where you calculated H30+ is at 1:20?
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minute 2:36, How do you do the division of 1x10-14/3.1x10-9? I thought yo had to subtract the coefficients? I must be doing something wrong I get -5 not -6. Please help Melissa.
PS thank you so much for all this work.
Wait a second I got it, it is the rounding, I was using 3.1 not 3. Got it
I think I love you 😆