in your other videos you show us how to do half equations when your given the ions the reactants form. how do you construct a half equation when (like in second question) you don't know what the H2O2 becomes. And thank you, you've been a great help.
How do you work out the half equations when you only know the reactants? Eg in this video all you know is h2o2 is acidified and titrated, so how'd you find the half equation?:)
You should be supplied all of the others. I'm currently putting together a video on how to construct the more awkward equations from info supplied in a question. Hopefully post later today otherwise tomorrow
@@MaChemGuy so because he used 25cm^3 that 1/4 of the solution.But it's out of 1000 so its 1/40(??)sorry if that's doesn't make sense. Like the original solution is 1000 but we used 25cm^3.so to get from 25 to original solution we × 40. (Am I sort of close?) Also,thank you for your reply:)
How do you work out the half equations when you only know the reactants? Eg in this video all you know is h2o2 is acidified and titrated, so how'd you find the half equation?:)
might be a bit late now but for anyone else you will be given the half equation and if your not its because its the half equations you must remember should be on the spec
Love the vodka analogy! You clearly know how to relate with your target audience..
Carry on changing people's lives by making chemistry easy your a legend
in your other videos you show us how to do half equations when your given the ions the reactants form. how do you construct a half equation when (like in second question) you don't know what the H2O2 becomes. And thank you, you've been a great help.
How do you work out the half equations when you only know the reactants? Eg in this video all you know is h2o2 is acidified and titrated, so how'd you find the half equation?:)
Would you get told hydrogen peroxide is oxidised to O2 or just expected to know it ?
Need to know that
MaChemGuy great thanks so you need to know that one, manganate, dichromate, which other ones are we expected to know ?
You should be supplied all of the others. I'm currently putting together a video on how to construct the more awkward equations from info supplied in a question. Hopefully post later today otherwise tomorrow
MaChemGuy great thanks so much !!
Can someone explain 4:38.I dont get why he used 40 and why is he mentioning 1000??
1/40 of the 1 dm3 solution is used in the titration
@@MaChemGuy so because he used 25cm^3 that 1/4 of the solution.But it's out of 1000 so its 1/40(??)sorry if that's doesn't make sense.
Like the original solution is 1000 but we used 25cm^3.so to get from 25 to original solution we × 40.
(Am I sort of close?)
Also,thank you for your reply:)
@@bellastarmartin4601 Correct.
@@MaChemGuy thank you sir
@@bellastarmartin4601 No problem. Be sure to check out my two titration walkthrough playlists. There’s loads of this kind of thing going on!
when they ask for the colour change is purple to colourless or purple to pale pink
I thought we aren't supposed to balance atoms with oxygen like you did in the H2O2 titration
I thought only water/H+ can be used in half equations, not oxygen, how was the half equation for hydrogen peroxide formed?
It decomposes forming O2
THANK YOU SO MUCH FOR CLEARING MY DOUBTS YOU'RE GOD GIVEN!!!!!!!!
Are we meant to know the half equation of the dichromate ions from memory?
maria6098 I tell my students to remember that they go from Cr2O72- to Cr3+ then they can work it out from there
It's a product of the reaction
How do you work out the half equations when you only know the reactants? Eg in this video all you know is h2o2 is acidified and titrated, so how'd you find the half equation?:)
might be a bit late now but for anyone else you will be given the half equation and if your not its because its the half equations you must remember should be on the spec
@@aasimazam6531 do you know which ones we need to know?
@@desklamp701 no sorry I took this over a year ago but it should be on your specification
@@aasimazam6531 ahh alright thanks