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To date, I have not seen a single CIE, AQA, Edexcel or OCR, reference or endorsed, book that mentions this reaction (believe me, I've done my reading!). I found it on the internet when I first bumped into the MCQ.
what reaction are you guys talking about?
Yeah, it's 24 dm^3 per mole, and 1 mole of O2 is 32 g. So basically, 24 dm^3 = 32 g of oxygen at room temperature which is what I did in my calculation. I have always used grams to solve these type of questions and I never get the answer wrong.. I'd be surprised if the examiners wouldn't accept this method..sounds okay. But if you have a look at your data booklet, it says that molar volume of gas under room conditions is 24 dm^3 per mole. So, preferably, work in moles.
I don't know if examiners will accept if u work in grams but to play safe, work in moles.
Reduction of carbonyl compounds by H2
bro plx mind that kinda language...+ what i said wasnt wrong.......in OUR CIE we dont use H2 to reduce carbonyl compounds
need help in moles dont know a thing about would really pray for someone who explains me moles MAY ALLAH BLESS YOU ALLHi everyone, assalamoalaikum!!
To get things organized in a better way, I am making this thread. As othewise, some queries remain unanswered!
So post your CHEMISTRY doubts in this thread. InshaAllah other people here will help me and you all.
Any Chemistry related notes and links will be added here in this post. Feel free to provide the links to your notes around the forum, or any other websites!
Thanks!
Jazak Allah Khair!
Chemistry Notes:
Data Booklet
http://www.chemguide.co.uk This is the website, which contains almost everything classified according to the syllabus.
Some links & Notes - by 'destined007'
Chemistry worksheets Link shared by hassam
Chemistry Application Booklet: Mistakes and Corrections!
Calculations for A level Chemistry, author E.N. Ramsden third edition ebook download.
hmm its not in the AS syllabus
There is nothing obscene or foul in my 'language'. H2 reduces cabonyl compounds. Check my next post.
I haven't opened your file but does it reduce them to secondary alcohols?
Corrrect!
The thing is people are saying that we don't have to study that H2 or the fact that they do reduce carbonyl compounds. Look at my pic, the examiners themselves have stated they do so!
yeh yeh you're right .. and what's left to study in the reaction when we (these people included) just had a discussion over it.
no I know its given.. but i was reading these notes and the dude keeps saying m/e and then on the axis it says m/z so I was like 0.0X-axis---> Isotope mass.
Y-axis---> % by mass.
BTW its always given in paper 2. You just need to know how to calculate relative atomic mass. You don't even need to know the working of Mass spectrometer.
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