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anything else on physics ?Also, as I heard from the physics lab, no electricity this time for 34.
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anything else on physics ?Also, as I heard from the physics lab, no electricity this time for 34.
Can anyone please provide experimental values for some or even one of these papers? it would help me solve them.Ok. Guyz, i dont know whether this is illegal or something but I can say the papers u must go through. I can confirm that there will be a question from the following. Informally, I can say that the first question might be a enthalpy graph question (50% chance) or titration with H2O2 (50% chance). Reaction time may come as 2nd question but it can be also titration(if it doesnt come for (1)) so yeah, it might. I guess enthalpy of disosciation of H2O2 is possible. I cant confirm anything cos I dont know whether it is illegal but go through the following papers. There is a question based from the following papers.
February march 2016 paper 33
October November 2012 paper 34
October November 2014 paper 34
May June 2014 paper 33
May June 2014 paper 34
May June 2015 paper 35
October November 2007 paper 32 (out of syllabus question-but if u can do it, u are on the safe side)
I too find it hard. Just put some values accoding to ur approximations and theoritical knowledge.ThanksCan anyone please provide experimental values for some or even one of these papers? it would help me solve them.
Its just hard to do so, without any values to begin with.
Which year and variant?Reaction 3 is shown below.
Cu(s) + H 2 SO 4 (aq) → CuSO 4 (aq) + H 2 (g)
Reaction 3
(f) Use your values for the enthalpy changes for Reactions 1 and 2 to calculate the enthalpy
change for Reaction 3.
Mg(s) + H 2 SO 4 (aq) → MgSO 4 (aq) + H 2 (g) Reaction 1
Mg(s) + CuSO 4 (aq) → MgSO 4 (aq) + Cu(s) Reaction 2
Show clearly how you obtained your answer.
(If you were unable to calculate the enthalpy changes for Reactions 1 and 2, you should
assume that the value for Reaction 1 is – 444 kJ mol –1 and that the value for Reaction 2 is
– 504 kJ mol –1 . Note: these are not the correct values.)
Answer this please!!!
winter 14 variant 31Which year and variant?
ok brocan you post whatever you know about physics on the physics 34 thread i would appreciate it
awwww poor soulno
you wont please help our souls
omg shut up this is for chem!!!anything else on physics ?
any inputs on the qualitative analysis please ?
lol please tell! thanks!sure
the one guy who knows it wont tell cause he thinks he might get banned xDLet the predictions roll from now on AND i want everybody with knowledge to share it cos night time isn't exactly useful(that doesn't mean you can't)
Salt Analysis and the intention behind H2O2 and starch are needed
No you must not leak it, You must PREDICT itthe one guy who knows it wont tell cause he thinks he might get banned xD
Are these for test analysis (qualitative analysis)View attachment 62253
Ye salts hain. 16 marks ka aiga. These could be reagents too.
No they could be from any part of questionAre these for test analysis (qualitative analysis)
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