Chemo P5 tips

[optimistic]

extremeranger and angelgirl please help me as well!! =(

 

[Paradoxical]

Gonna ask this again:

What's the lowest grade I could get in paper 5 that would still allow me to get an overall A in chemistry? (I got an A in AS).

 

[Nabeelhsid]

link is in the forum.......chek the announcements thread

please don't use this albert einsein quotation, as einstein later said that 'i cannot believe God plays dice with the universe.' this was after Heisenberg proved his theory of uncertainty. thanks.

 

[ousamah112]

please someone explain... this is from m/j o9 ..hw do i draw graph with these points?? question says draw two separate lines..:S

 

[larina]

View attachment 10212 please someone explain... this is from m/j o9 ..hw do i draw graph with these points?? question says draw two separate lines..:S

its a curve and a straight line. the point of intersection will be around 67 0C

 

[ousamah112]

its a curve and a straight line. the point of intersection will be around 67 0C

which one is acurve and which one is a line??

 

[IsaacNewton]

View attachment 10212 please someone explain... this is from m/j o9 ..hw do i draw graph with these points?? question says draw two separate lines..:S

I have the same confusion in that question..


Oh and BTW, Zeebujha, You copied most of the stuff from: http://studyguide.pk/?p=1727
At least give them some credit instead of acting like you came up with it

 

[ousamah112]

I have the same confusion in that question..


Oh and BTW, Zeebujha, You copied most of the stuff from: http://studyguide.pk/?p=1727
At least give them some credit instead of acting like you came up with it

yeah.. he did..
and did you get the graph just like mine???

 

[hassam]

actually studyguide copied from xpf

 

[F husna]

can some1 help solve o/n 2009 p52 question 1 part d

 

[hassam]

pleaseeee anserrhttp://www.xtremepapers.com/papers/... AS Level/Chemistry (9701)/9701_s11_qp_51.pdf
qd ....why we need same mole for all carbonates....like i was measuring time for cllecting 10 cm^3 gas......so watever mole i have ....as long as 10 cm^3 gas cn be produced from them.....there's no problemmm..........please anser smbodyy........m tennsed

 

[hassam]

pleaseeee anserrhttp://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s11_qp_51.pdf
qd ....why we need same mole for all carbonates....like i was measuring time for cllecting 10 cm^3 gas......so watever mole i have ....as long as 10 cm^3 gas cn be produced from them.....there's no problemmm..........please anser smbodyy........m tennsed

http://www.xtremepapers.com/papers/... AS Level/Chemistry (9701)/9701_s11_qp_51.pdf
q1 last part....why lrage syringe will reduce error.......

 

[ousamah112]

View attachment 10217
Draw two lines, Something like this:

why didnt you include the first three points??

 

[smzimran]

why didnt you include the first three points??

They must be 'anamolous' points
Because at low temperatures, solubility results arent that accurate
ousamah112 ^ that is why

 

[ousamah112]

They must be 'anamolous' points

how do you knw that??? i was trying to make line through those points..

 

[ousamah112]

They must be 'anamolous' points
Because at low temperatures, solubility results arent that accurate
ousamah112 ^ that is why

plz help in this one too:
q2 part a
http://www.xtremepapers.com/papers/... AS Level/Chemistry (9701)/9701_w10_qp_53.pdf

 

[hassam]

no it shud be a curve and a line

 

[smzimran]

plz help in this one too:
q2 part a
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w10_qp_53.pdf

Havent done it yet!

 

[ousamah112]

Havent done it yet!

okay...do tell me when you do it...

 

[Utsav.]

how does an increase in solubility of a solid with temperature favors the prediction that it is an exothermic reaction???