chemistry: Post your doubts here

[hix5]

if any body needs help just ask

 

[MNU]

just a small question, how do we check the point of crystallisation

 

[hix5]

WHEN CRYSTALS ARE FORMED ON THE ROD THAT WHEN YOU KNOW THAT YOU HAVE REACHED crystallization POINT

 

[MNU]

thanx!!

 

[Tharindu]

Samples of sulphur dioxide are passed through acidified potassium dichromate....why does colour change

 

[khalil]

its the case of reducing and oxidizing agent

 

[hix5]

Samples of sulphur dioxide are passed through acidified potassium dichromate....why does colour change

is this a pastpaper Q????
if it is give me the link so i can answer you an accurate answer

 

[Capricedcapri]

how do we fill in the identifcation columns??.....i mean wts da exct pattren.......??

 

[kumiko]

Do we need to close or open the air hole when we are doing the experiment?

 

[hix5]

how do we fill in the identifcation columns??.....i mean wts da exct pattren.......??

you have to memorize all the identification in order to answer them

 

[hix5]

example solid H contains calcium

sodium hydroxide was to solid H
observations
white ppt and if he asks that excess was added u say that its insoluble in excess

 

[Capricedcapri]

you have to memorize all the identification in order to answer them

you have to memorize all the identification in order to answer them

Well I got my answer n it's nt wt u r saying anyway....thnx for trying...

 

[F husna]

Describe HPLC plzz...