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among all salts in our syllabus the only insoluble salts of Barium are Barium Carbonate, BaSO4 and BaS03
we will first add HCl to remove carbonate and then add BaCl. if we get ppt then we add dilute acid in excess to make sure it is SO4 not SO3.
BaSO4 is insoluble in acidic solution.
Just draw the structural formula of the trans isomer of the given formula.did someone understand m/j 2011(paper 22) question 5(C)? can you explain how you get the answer?
yeah but why is that the answer? i can look at the marking scheme and it would tell me the same thing. i don't understand whyJust draw the structural formula of the trans isomer of the given formula.
It says right there in the question that elaidic acid is the trans isomer of the formula, so just draw it.yeah but why is that the answer? i can look at the marking scheme and it would tell me the same thing. i don't understand why
Suchal, would you mind giving me a list of what are we supposed to know what is insoluble and what is soluble (like a generalisation). Thanks!
Re: All Chemistry help here!! Stuck somewhere? Ask here!
These sites might help ... check em
1.Beta-Theta.com Chemistry Section
http://adf.ly/378ET
Notes on a number of topics relevant to AS/A Level Chemistry are included. The notes include a particularly good interactive Periodic Table. There is also access to Homework Help and to a Midnight Café chat-room.
2.http://adf.ly/l8tn
This is a US site intended for first year undergraduates, but much is relevant to AS/A Level Chemistry. Notes, articles and tutorial are included. A number of experiment simulations can be accessed. The compound library is very good.
3.http://adf.ly/l8to
A lighthearted look at many aspects of Chemistry. There are a lot of links to useful pages written by teachers and students. Not all of this is relevant to AS/A Level, but much is. A wealth of information and a lot of fun.
4.Chemsoc Interactive Periodic Table
http://adf.ly/l8tp
A high quality interactive Periodic Table with photographs and information about each element.
These were posted three years Ago!!Entirely BOGUS SITES NOT A HELP TO ANY ONE!!!!
Yes with an aldehyde as the intermediateGuys can nabh4 convert an
acid into an alcohol?
What are the answeres?Please help me in this. How to fill out moles after equilibrium. I don't get how he (ms) got the and.Sorry fr the upside down image but pls do help
View attachment 40848
how u got 13 for ethanol?What are the answeres?
Are they ..
6.5 for Acid
13 For Ethanol
1.5 for ester
1.5 for wwater?
Please help me in this. How to fill out moles after equilibrium. I don't get how he (ms) got the and.Sorry fr the upside down image but pls do help
View attachment 40848
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