If you have any question on chem p6 im ready you guys. Don't Worry!!

[Lost_Life]

Now ur making me feel guilty, like im pushing you to do something that you dont want to, and i hate to do that. You can just tell me if it was easy or not ok?

naah, i want too

 

[jaida al hinai]

O/N/011/63 please, question 5 (f) (ii). Explain 2 me please​

there is no (f) in Q.5

 

[JimmyCarter]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Chemistry (0620)/0620_s07_qp_6.pdf

question 4c t

if 20cm3 of solution A used 20.6cm3 of sodium thiosulfate, what volume of sodium thioulfate would use 10cm3 of solution B? (knowing that solution A and B are the same potassium iodate but with different concentrations) Half would be used. because the solution of potassium iodate decreased by half, so also the sodium thiosulfate decreases by half which becomes 20.6/2 = 10.3 understand?

 

[JimmyCarter]

Thanks alot

ur welcome

 

[JimmyCarter]

O/N/011/63 please, question 5 (f) (ii). Explain 2 me please​

u made a mistake, which one do u mean?

 

[Bassem]

u made a mistake, which one do u mean?

4(f)(ii)

 

[Wasif`]

For CHEMISTRY PAPER 6 TO GET A*, STUDY :-
1. All the labeling and names of apparatus
2. Learn and revise CATION AND ANION again and again
3. Preparation of soluble salt, insoluble salt, titration and Precipitation method (step by step which gives examiner a good impression and sometimes bonus marks)
4.Reaction of Acid with basis , carbonate, salt
5. Learn pH scale by color and example of strong or weak acid
6. Chromatography, filtration, Crystallization, to separate solvent from solution by distillation, Fractional Distillation
7. Rate of Reaction and effect of increasing surface area, concentration, temperation, suitable catalytst and light
8. Photography by Silverbromide and Photosynthesis equations
9. Equilabrium and Energy change in reversible reaction
10. Solid, liquid and gasses states and properties.

GOOD LUCK EVERYONE

 

[Lost_Life]

i dont

For CHEMISTRY PAPER 6 TO GET A*, STUDY :-
1. All the labeling and names of apparatus
2. Learn and revise CATION AND ANION again and again
3. Preparation of soluble salt, insoluble salt, titration and Precipitation method (step by step which gives examiner a good impression and sometimes bonus marks)
4.Reaction of Acid with basis , carbonate, salt
5. Learn pH scale by color and example of strong or weak acid
6. Chromatography, filtration, Crystallization, to separate solvent from solution by distillation, Fractional Distillation
7. Rate of Reaction and effect of increasing surface area, concentration, temperation, suitable catalytst and light
8. Photography by Silverbromide and Photosynthesis equations
9. Equilabrium and Energy change in reversible reaction
10. Solid, liquid and gasses states and properties.

GOOD LUCK EVERYONE

i dont think we have to know about equilibrium , its more paper3

 

[JimmyCarter]

4(f)(ii)

ok, so what you do is that you list the ones that used the least amount of sulfuric acid. The more the concentration of NaOH the less the volume of acid needed to neutralize it ok? because concentrated ones have a lot of particles so theres more collision. so its C,A,B understand?

 

[wooowooowoo]

Good luck on your paper Jimmy!

 

[Bassem]

ok, so what you do is that you list the ones that used the least amount of sulfuric acid. The more the concentration of NaOH the less the volume of acid needed to neutralize it ok? because concentrated ones have a lot of particles so theres more collision. so its C,A,B understand?

but it is like: least reactive --->most reactive, how is "C" most reactive?

 

[JimmyCarter]

but it is like: least reactive --->most reactive, how is "C" most reactive?

the question is about concentration and not reactivity ya bassem!

 

[JimmyCarter]

Good luck on your paper Jimmy!

thank u wooowooowoooo! you too. all the best

 

[Bassem]

ok its least concentrated-----> most concentrated

 

[JimmyCarter]

ok its least concentrated-----> most concentrated

i just explained it. the more concentrated the naoh the least amount of sulfuric acid needed to neutralize it. bcuz concetrated has more particles. read my post again

 

[Bassem]

C used the least amount of H2SO4

 

[JimmyCarter]

C used the least amount of H2SO4

yesss becuase it is the most concentrated

 

[Bassem]

yesss becuase it is the most concentrated

so the order is : B,A,C?
least concentrated---->most concentrated

 

[JimmyCarter]

no

so the order is : B,A,C?
least concentrated---->most concentrated

, C A B

 

[Bassem]

no
, C A B

y??????