Chemistry 3B help???

[Lilpumpkin]

how can we improve the accuracy of results by distillation??
What's the use of using nichrome/planitum wire?

 

[shadowy4646]

the use of nichrome precisely for what ???/

 

[Lilpumpkin]

For a flame test

 

[shadowy4646]

um it use is that i can withstand high heat and and do not interfere with the ion u are testing

 

[shadowy4646]

but the first question is werid never thougt of that

 

[Lilpumpkin]

Ya me too till when I came across from the past paper

 

[shadowy4646]

and also not interfere with the color heh!

 

[shadowy4646]

Ya me too till when I came across from the past paper

which past paper and didn't you refer to the mark scheme

 

[Lilpumpkin]

It says we use cuz it has high temp

 

[Lilpumpkin]

?

 

[shadowy4646]

It says we use cuz it has high temp

i mean which question are u talking bout

 

[Mufaddal]

we can improve accuracy of results by distillation by finding the boiling point and comparing it with the data book value....a nichrome/platinum wire is used in a flame test as its inert

 

[lateefa3]

yu guys, does anyone have an idea bout ECF (error carried forward).. cause no matter what i do..my answers are always having a slight different value than the mark scheme ..and if i use that value on the next question so my answer for this one could definitely get wrong..soo yeaa wil i be awarded a mark?

 

[Mufaddal]

yu guys, does anyone have an idea bout ECF (error carried forward).. cause no matter what i do..my answers are always having a slight different value than the mark scheme ..and if i use that value on the next question so my answer for this one could definitely get wrong..soo yeaa wil i be awarded a mark?

i think they award 1 mk for the correct methods even if the values are wrong

 

[lateefa3]

i think they award 1 mk for the correct methods even if the values are wrong

I hope so :L