A2 Chemistry OCR F325 – Introduction to Buffer Solutions
What are buffers? How are they made? How do they work?
Video Rating: 5 / 5
http://www.getchemistryhelp.com This chemistry lesson explains the metric system, how to use prefixes to increase or decrease the magnitude of the basic units, and how to convert between metric units.
Video Rating: 4 / 5
Best explanation I’ve seen yet! Thanks!
Thanks, this helped a lot.
your videos are try helpful, thank you. Will you be making videos on KC,
Neutralisation titration curves and pH/
Hi when you showed the dissociation of carbonic acid, surely since it is a
diprotic acid it should dissociate to co32- and 2H+ rather than what you
have shown
Regardless the video was helpful thanks
Wow thank you very much! Your explanation was really helpful and easy to
follow and your response to some comments has explained everything for me
:)!
thanx! very helpful
Thankyou so much its maks so much more sense….can you do a video on
density??
Check out this video on YouTube:
How could I do this without a calculator?
thank you. this helped me with my bio lab.
THANK YOU!! That helped a lot.. Please post more video’s of complex
dimensional analysis using the metric system.
I think I figured it out…the exponents 3-2 =1, then 1-6 = -5…
this was a HUGE help thank you!!!!
really appreciate how you teach and start from the very beginning and on.
My chem teach expected us to already understand prefixes and such and not
explain how the conversions are placed. This really helped me, keep up the
good work.
Thank you so much Mr.GetChemistryHelp. Your explanations are very clear and
easy to follow. I learned from your videos more than I learned in class.
Just one question: How did you get 105at the end? Thanks again may God
bless you.
Thank you!!
For the second problem around 9:06 , why did you put 10^-2m / 1cm? Why
didn’t you put “10^2cm” on the bottom? I thought you put the “1” infront of
the prefix that is bigger than the other? which I thought would be m is
bigger than centimeters?
What are you using to write on the board so clearly?
I’ve been out of school FOREVER! Continuing my education and have to take
chemistry. Can someone please tell me how he got 10 -5 for the exponent in
the end?
Great Video!
thank u so much! this clear up so much!
This was so helpful! I have such a hard time understanding anything to do
with numbers but I finally got it! Thank you! （＾∇＾）
In the States we refer to 1,000 kg (1 Mg) as a metric ton. And in most
daily situations you wouldn’t use Mm, but there are times in scientific
measurements where you need really huge distances so Mm, Gm, Tm, etc. are
all feasible. Thanks for the feedback!
I’m Danish, so I’m quite used to the metric system, but it’s a very good
explanation. 🙂 While the video is correct, there’s a few things I would
add though. 1,000 kilograms = Mg (Megagram), but no one really uses Mg
(Perhaps scientists perhaps.) We generally call it a ton (Tonne). I’m not
sure why, but perhaps due to Mg being so similar to mg (miligram). For
distances, we rarely use anything above Kilometer. I’ve never heard
Megameter used at all. It’s just 1000 km in daily usage. 🙂
Glad you got it! Congrats! 🙂
Hello, z3nkin. The most common mistake on these types of problems is not
using your calculator properly. You will want to use the exponent key
(typically EE or EXP) and be sure you enter it as 7.624E3 x E-2 / E6.
Alternatively, you can do it the long way as 7.624×10^3 x 10^-2 / 10^6.
Thank you for the high praise, Arpine! Be sure to check out my other videos
and tell a friend. 😉
Thank you. This helped me with my home work.
You’re welcome!