Its hard to explain the anxiety calming feeling I get when I start one of your videos, because I know that after these 12-15 mins, I will understand this topic so much more than I do now. Most productive minutes of my life tbh. They need to advertise your channel in future chemistry textbooks!
You're a Godsend! You've pretty much just explained the concept I found most difficult in f215 with such simplicity. Feel like I'm leaving this video with a lot of clarity. Thank you so much :-)
For the last question I got 83.6% as well. Is it ok if I divide the mole of the Cu by the mole of the impure Cu to reach the same final answer ((0.01185/0.01417)x100)? (instead of the dividing the masses)
hi on your previous video for redox titrations you had mentioned that if dissolved in water then the moles don't change regardless of change in volumes. why are you timsing cu2+ in 25cm3 mol by 10 to find mols of cu in 250cm3?
The moles dissolved are the same as the moles in the 250cm3 The moles used in the 25cm3 for the titration however are 1/10 of this Hope that makes sense
how would we know all the half equations? i see in the comments you said we will be given them but you are not including them in the question and then ask us to have a go, does this mean we have to be able to work them out ourselves? or is there a mistake
hi, in the last example on this video, at the end before working out the mass, why do you not divide the moles of Cu2+ by 2. Because in 2Cu2+ + 4I- --> 2CuI + I2 you have 2 moles of Cu2+ (which is 0.01185mol) but if you take into consideration the HNO3, the equation is: Cu + 2HNO3 --> Cu(NO3)2 + H2. so surely you would need to divide by 2? I'm just a bit confused.
Hi, the ratio of Cu2+ ions to Cu in the equation involving the nitric acid is 1:1 so no need to do anything to the moles at the end. Hope that made sense :)
Is it likely that they will ask us these questions without providing the equations, a lot of the redox titrations question I’ve done already have the equations so I’m wondering if it’s worth memorising. Nonetheless, Amazing videos thank you so much
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Its hard to explain the anxiety calming feeling I get when I start one of your videos, because I know that after these 12-15 mins, I will understand this topic so much more than I do now. Most productive minutes of my life tbh. They need to advertise your channel in future chemistry textbooks!
You are without a doubt the greatest online chemistry educator. For that I am extremely grateful and I wish you the best as your channel grows. ☺
You're a Godsend! You've pretty much just explained the concept I found most difficult in f215 with such simplicity. Feel like I'm leaving this video with a lot of clarity. Thank you so much :-)
Do you have a link to where I can donate to support your work? Your video tutorials are extremely helpful!
Thank the lord I watched this!!! IT CAME UP!...similar questions! ❤️
Glad it helped :)
I used to find these so stressful and hard but you made the topic seem so easy haha , thank you , I understand it so well now !
Glad it helped!
most underrated teacher on you tube
Your video has helped me to understand these calculations which I once found impossible. you make chemistry so manageable.Thank you sir!
That's wonderful to hear. Many thanks for getting in touch
is the redox equation between sodium thiosulphate and iodine something we have to remember by heart? As I was confused to how to do the equation.
Sir you're the best. I hope you're doing good wherever you're.
All good thanks - just want to get back to normal ASAP.
Hope you all good too
Massive help thanks. Didn't get it last year, easy as this year.
Glad to hear it.
are we required to learn these half equations by heart? also, thank you so much for these videos!
Superb ! Thank you so much!
Thank you so much.
Sonil Zaki you're welcome - thanks for taking the time to comment
THANK YOU SO MUCH
You're welcome. Thanks for the comment :)
great video, cheers.
For the last question I got 83.6% as well. Is it ok if I divide the mole of the Cu by the mole of the impure Cu to reach the same final answer ((0.01185/0.01417)x100)? (instead of the dividing the masses)
hi on your previous video for redox titrations you had mentioned that if dissolved in water then the moles don't change regardless of change in volumes. why are you timsing cu2+ in 25cm3 mol by 10 to find mols of cu in 250cm3?
The moles dissolved are the same as the moles in the 250cm3
The moles used in the 25cm3 for the titration however are 1/10 of this
Hope that makes sense
@@MaChemGuy i am still struggling to wrap my head around this
@@MaxIsNotWell. Check out my walkthrough playlist on redox titrations
how would we know all the half equations? i see in the comments you said we will be given them but you are not including them in the question and then ask us to have a go, does this mean we have to be able to work them out ourselves? or is there a mistake
hi, in the last example on this video, at the end before working out the mass, why do you not divide the moles of Cu2+ by 2. Because in 2Cu2+ + 4I- --> 2CuI + I2 you have 2 moles of Cu2+ (which is 0.01185mol) but if you take into consideration the HNO3, the equation is: Cu + 2HNO3 --> Cu(NO3)2 + H2. so surely you would need to divide by 2? I'm just a bit confused.
Hi, the ratio of Cu2+ ions to Cu in the equation involving the nitric acid is 1:1 so no need to do anything to the moles at the end. Hope that made sense :)
`thank you sir
Why wouldn't you use half equations to construct the overall equation the produces the iodine?
Is it iodometric titeration
Is it likely that they will ask us these questions without providing the equations, a lot of the redox titrations question I’ve done already have the equations so I’m wondering if it’s worth memorising. Nonetheless, Amazing videos thank you so much
No, they will give the equation. I have seen one where you need to establish the mole ratio via two mole calculations
Hello sir , could you please upload practical video on heating experiments.
How did you no what the equation was for Cu2+ I- ETC from just the question ???
UARESIK that will be given in the question, i just did a 6 mark question and it was given. :)
What board do you do?
do we get given the formulas for these reactions or need to be able to make them up
You'll get them
Do we have to memorise the formulae or work them out ourselves
They’ll be given in the question
i thought you times it by 10 to get th3 moles of 250CM3??
tyvm
+itsConnor_ yvw
wish you were my teacher!! you're amazing WOW
+itsConnor_ I guess I am in a way
+MaChemGuy 'i am in a way' so emotional, the feels are real lol
love youuuuuuuuuuuuuuuuuuuuuuuuu