Chemistry Test of Ions

[wooowooowoo]

Chemistry | Test of ions​

​

So, on Wednesday we will have Chemistry paper 6. Every year there are test of ions based questions. Here is a list compiled by me on test of ions. Hope it helps!

Please tell me if there is any mistake in the list and I'll make changes A.S.A.P


Official anion/cations and gases test by Cambridge.

 

[wooowooowoo]

Some general ideas for Paper 6.

1. You should know the basic lab apparatus.
2. You should know how to read from the burette/pippette/measuring cylinder images given
3. You should know to draw a graph
4. You should know the identification of ions (test to check the presense of iron(ii) etc)
5. You should know Titration
6. You should know Chomatography
7. You should know Crystallization
8. You should know difference between distillation and fractional distillation
9. You should know the basic filtration methods
10. You should know effect of heat and concentration on reaction

If anyone has any more points, feel free to add to the list

• ALWAYS has salt or solution identification using cation and anion test.

• Expect graphs, not just normal ones, but ones where you have to draw TWO straight lines and intersect them to find the volume required for the reaction, sigmoid graphs are rare, but they're purely application questions, so they may come!

• expect improvements in apparatuses or experimental methods (repeating, using more accurate apparatuses like pippette instead of measuring cylinder)

• planning experiments for chromatography (dyes in bank notes), enthalpy experiment to find out which hydrocarbon gives of more energy when burnt, experiments to obtain metals from a given sample of ore IN THE LAB

• distinguishing substances by carrying out tests- you need to know how that's done.

Just thought I'd add.
Solubility Identification of gasses as well.
EDIT: Removed graphing, it's already there.

 

[Afraah]

OMG THANK YOU SOOOO SOOO MUCH <3 I LOVE THIS <3
THANKIIESS

 

[wooowooowoo]

OMG THANK YOU SOOOO SOOO MUCH <3 I LOVE THIS <3
THANKIIESS

I'm glad I could help.
If you encounter any flaw in it, do let me know. Thanks

 

[areebaization]

TY! ... I suck at chemi pleaseee pray that I get an A* like my parent expect me to get

 

[wooowooowoo]

TY! ... I suck at chemi pleaseee pray that I get an A* like my parent expect me to get

Yes! Will do
Good luck preparing for Chem. Paper 6 is usually easy.
60 marks get converted to 20%; so you get 9 marks wrong in the paper means you only get 3 marks wrong overall.
51/60 TO 17/20

 

[areebaization]

Yes! Will do
Good luck preparing for Chem. Paper 6 is usually easy.
60 marks get converted to 20%; so you get 9 marks wrong in the paper means you only get 3 marks wrong overall.
51/60 TO 17/20

Thankyou so much! I would love to read ur tips before p3, that's the main ppr

 

[wooowooowoo]

Thankyou so much! I would love to read ur tips before p3, that's the main ppr

That's so sweet of you.
You can always ask me for help if you get stuck in any part of Chemistry.

 

[ZainH]

TY! ... I suck at chemi pleaseee pray that I get an A* like my parent expect me to get

Im in the same boat with you.. parents expecting an A in chem >.>
I hate chem -.-
Thank god for this thread though! x)

 

[wooowooowoo]

Im in the same boat with you.. parents expecting an A in chem >.>
I hate chem -.-
Thank god for this thread though! x)

You can ask me for help in the parts you get stuck! I'll be more than glad to help you out

 

[areebaization]

You can ask me for help in the parts you get stuck! I'll be more than glad to help you out

How do u remember the linkages in Org. ?
I always get stuck! I guess my base aint strong in chemi

 

[ZainH]

You can ask me for help in the parts you get stuck! I'll be more than glad to help you out

That'd be great man, but expect a lot of questions .. mainly before paper 3 !
Making this thread a favorite so I could come back to it later x)

 

[wooowooowoo]

How do u remember the linkages in Org. ?
I always get stuck! I guess my base aint strong in chemi

You're good at Biology. I mix up Chem with Bio to remember the Linkages.
For example, Protein is the only one between the 3 to have extra 'N' (Nitrogen) in it.
Carbon Hydrogen Oxygen and Nitrogen

So CHON
I see the diagram and if it has CHON - It is a amide linkage (Amide as in Amino (protein)

I hope you understood what I meant

 

[areebaization]

You're good at Biology. I mix up Chem with Bio to remember the Linkages.
For example, Protein is the only one between the 3 to have extra 'N' (Nitrogen) in it.
Carbon Hydrogen Oxygen and Nitrogen

So CHON
I see the diagram and if it has CHON - It is a amide linkage (Amide as in Amino (protein)

I hope you understood what I meant

Wow u're awesome ty! <3

 

[wooowooowoo]

That'd be great man, but expect a lot of questions .. mainly before paper 3 !
Making this thread a favorite so I could come back to it later x)

Sure. I love questions
I'll be waiting

 

[wooowooowoo]

Wow u're awesome ty! <3

Haha you're most welcome! Let me know what else I can do for you

 

[coldplayer]

do i need to study Moles & Organic Chemistry for paper 6? (chemistry)

 

[wooowooowoo]

do i need to study Moles & Organic Chemistry for paper 6? (chemistry)

Never encountered such questions in my life.
It's mostly test of ions, graphs, basic lab apparatus and titration etc.

 

[lol]

how do we know whether tovuse simple or fractional distillstions if we have two liquids like a mixture of water and aqueous magnesium sulfate?

 

[wooowooowoo]

how do we know whether tovuse simple or fractional distillstions if we have two liquids like a mixture of water and aqueous magnesium sulfate?

When we are separating two different liquids such as different alkenes, we will need fractional distillation. In this question, I'm assuming you need to acquire water so simple distillation will be fine.

More info here : http://www.xtremepapers.com/revision/gcse/chemistry/lab_skills_and_separating_methods.php