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I won't agree!i think it's gonna be min 64 and max 68.It will not be in 70.there were many tricky question which seemed easy but in actual things were different.Yeah section B was a lot easier,but can't say the same for A.Well it doesn't matter I personally think just pray that what ever is the GT I should get to my targeted grade.
-0.17
why is it -0.17?
-0.17 and hydrolysis
i can't understand... why hydrolysis?
its for biodegradable
It should be -0.13 , how did -0.17 come ????
even i got -0.13 , but its wrong right?
E which was given was -0.13 and its for standard conditions and 1 molar conc. But in saturated sol of pbcl2 the conc was lesser than 1 molar so obviously E will be more negative.
Yes it will be 0.00v because the solution is saturated and Pb cannot be oxidized to Pb2+ by the hydrogen half cell which has more positive potential. In a saturated solution no more solid can dissolve so Pb cannot turn to Pb2+. So there will be no reaction and no voltage produced. Hope this helps.
Thats what i am asking !
ok... i get it now... i didn't think of it b4 ..
How can you say the concentration of Pb2+ is less than 1?? A saturated solution contains the highest concentration of the solute dissolved in it so concentration of Pb2+ is maximum
first blue then pale blue ppt then deep blue of Cu(NH3)4.
I have solvr this type of question before....see previous year papers
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