Paper 5 Tips !! :)

[Muhammad Bin Anis]

Line of best is not the straight line, its the line with the most points on it
did that help?

what i actually wanteed to ask was whether we were to draw a line or a curve?

 

[xhizors]

here is the table, nd it shud cum more than 100.. anywys chck it with ths!

yup same values

 

[xhizors]

what i actually wanteed to ask was whether we were to draw a line or a curve?

post ur question babai
!!again

 

[stella jazz]

in this question u r making a solution of NaOH and CuSO4
use c1v1=c2v2
push a little harder and bingo u'll get it!!

tell me if prob resist

sorry 4 being a pain in the head but i still didnt get it ....how do we use c1v1=c2v2 ...they havnt given anything apart from the con of NaoH ..the question asks us 2 prepare solutionsof an appropriate range of con

 

[Kinjal]

here is the table, nd it shud cum more than 100.. anywys chck it with ths!

Yeah,thats exactly how my table looks aswell..

 

[xxfarhaxx]

lol!! common man what to freak out u r payying to give paper not they are suing you !!

i hav qute a gud reason fr tat! i have to sit 2 pprs contnsly!

 

[xhizors]

For calculating the solubilities i took mass of the solid,which for the first case,is 77.9 .Then I divided it by the mass of the water which is 43.5,for the first one. So the solubility is that times a 100,so my first solubility is 179. Is that wrong? What are you supposed to do then??

Actually i am sorry, that question is an exception!! ur values are right mines same!
but think it like can u dissolved 2kg of cheeni(sugar) in 10cm3 water

 

[xxfarhaxx]

Yeah,thats exactly how my table looks aswell..

wel thn its corrct!

 

[Kinjal]

Actually i am sorry, that question is an exception!! ur values are right mines same!
but think it like can u dissolved 2kg of cheeni(sugar) in 10cm3 water

Yeah exactly..it makes sense..
Thanks a lot guys!

 

[knowitall10]

i need to find the solubility so it is mass of solid dissolved/mass of water. they gave me 60cm^3 of distilled water should i pretend that 1g = 1cm^3 or there is a way to find the mass of water?

that's the standard way of doing it.. 1cm3=1g

 

[MaxStudentALevel]

HEY ANYONE could you PLEASE let me know if we eed those squiggly lines to show the orgins which aren't true?!!?
Like on your graph xhizors ?

 

[knowitall10]

Actually i am sorry, that question is an exception!! ur values are right mines same!
but think it like can u dissolved 2kg of cheeni(sugar) in 10cm3 water

xhizors i have solubility values less then 100..i dnt get wht ur doin?

 

[xhizors]

sorry 4 being a pain in the head but i still didnt get it ....how do we use c1v1=c2v2 ...they havnt given anything apart from the con of NaoH ..the question asks us 2 prepare solutionsof an appropriate range of con

can u repost the qp plz, ur point is valid

 

[alim]

http://papers.xtremepapers.com/CIE/... AS Level/Chemistry (9701)/9701_s12_qp_51.pdf (june 2012 paper 51 q 1c)......problem in all three parts...plz help:........

 

[studyexams]

hey listen please help me with june 10 52 q1. cant understand this question !!

 

[Kinjal]

HEY ANYONE could you PLEASE let me know if we eed those squiggly lines to show the orgins which aren't true?!!?
Like on your graph xhizors ?

Yeah,its good to show them when your graph dsnt start at (0,0)

 

[xhizors]

xhizors i have solubility values less then 100..i dnt get wht ur doin?

can u upload ur table?

 

[MaxStudentALevel]

Yeah,its good to show them when your graph dsnt start at (0,0)

Alright thankyou very much!!!!

 

[Gémeaux]

HEY ANYONE could you PLEASE let me know if we eed those squiggly lines to show the orgins which aren't true?!!?
Like on your graph xhizors ?

Or if you don't want those, you could just write FO (false origin).

 

[xhizors]

can some please help with how to determine avagadros constant through experimentation! please decribe it please!​

MaxStudentALevel knowitall10
i think we can use procedure which is used to determine faradays constant
can u help with a detailed steps?