How was the AS chemistry practical 31 ?

[goodluckayesha]

can u tell for which variant??

ok

 

[safwaan99]

which last 3 parts

 

[queen of the legend]

wat was the other ion in the solutions ?

 

[safwaan99]

I didn't do that
and no regrets since it was only 1 mark

 

[Omar99]

ok

Varient 31

 

[Ariel Robert]

wat was the other ion in the solutions ?

Nitrate or Sulfate

 

[Ariel Robert]

Fa5 Pb
Fa6 Cl
Fa7 Cr
Fa8 CO3
Fa9 Br

 

[safwaan99]

I got FA 9-cl

 

[Ceren.E]

wat was the other ion in the solutions ?

wasn't it H+ since the chromate turned orange? :/

 

[marz_katy]

yes it ws h

wasn't it H+ since the chromate turned orange? :/

yes H+=)

 

[raysonzaffar]

wat was the other ion in the solutions ?

H+ as there was an effervescence which only takes place with dilute acids

 

[Ariel Robert]

I got FA 9-cl

When Silver Nitrate was added it formed a creamy ppt...

 

[Vikings]

what was the answer for last question's, last 3 parts
salt analysis one pleaseeeee

You just had to write your observations.
The reagent used to test for bromide and chloride was silver nitrate (AgNO3)
Gave a creamy ppt, hence the solution contained Bromide.

 

[Vikings]

H+ as there was an effervescence which only takes place with dilute acids

Determination of H+ ion is not in our Syllabus.!!!!

 

[Vikings]

When Silver Nitrate was added it formed a creamy ppt...

Agree!!!!!!!!

 

[goodluckayesha]

Agree!!!!!!!!

Agreed totally!!!

 

[sania222]

Hi,
I will be giving paper 34 on 23rd, I dont want specifics and I know the questions may not be similar, but was just curious to know what came for variant p31? could practice in school.

 

[raysonzaffar]

Hi,
I will be giving paper 34 on 23rd, I dont want specifics and I know the questions may not be similar, but was just curious to know what came for variant p31? could practice in school.

We had a volumetric titration, salt analysis and a thermometric titration .... related to heat

 

[sania222]

Thank you very much raysonzaffar!!!

 

[ahmed abdulla]

How was it ...... no discussion

can u summurize wt came ?? it might help us in paper 34 ??