Physical Chemistry - JEE - 2008 doubtttttt

1

vector ·2009-04-04 04:55:58

ya its crrct
this is the basic defination of solute -its that component of binary homogenous mixture which is present in less amt

UP 0 DOWN 0
Post on FacebookPost anonymously?

21

tapanmast Vora ·2009-04-04 09:40:08

SKY thinks kuch aur : amount in terms of mole fraction..

UP 0 DOWN 0
Post on FacebookPost anonymously?

24

eureka123 ·2009-04-04 09:33:38

@ tapan

amount is based on volume.....

becoz in soln phase we should concentrate on volume

UP 0 DOWN 0
Post on FacebookPost anonymously?

21

tapanmast Vora ·2009-04-04 09:31:12

Y mol fractn.......

198g of H2 mein agar 1 ek graam Uranium dala to Ur ACTS AS A SOLVENT [11] aisa kya ??

r u sure ??

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-04-04 09:30:37

k sky di ......thanks

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

skygirl ·2009-04-04 09:28:37

if they say 2.5% (mass/volume) wats hud we infer frm this

inference = 2.5 /100 (mass/vol)

=> in 100ml solution, there is 2.5 gm of that stuff.

similarly if given mass/mass .. then we wud have said: 2.5 gm in 100 gm solution.

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

skygirl ·2009-04-04 09:26:15

amount in terms of mole fraction..

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-04-04 09:23:42

m always confused in dat topic .i eman percnt by mass n percnt by volume

if they say 2.5% (mass/volume) wats hud we infer frm this

(tapan m sorry bt it was replated so posted ma query here ..........sorry )

UP 0 DOWN 0
Post on FacebookPost anonymously?

21

tapanmast Vora ·2009-04-04 09:20:00

One more clarification pl...............

DEFINITION of SOLVENT says :

amount of A > amt of B -------------> basic defn of solvent.

AMT. in refernce to MASS OR VOLUME ???

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

skygirl ·2009-04-04 08:43:46

:P

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

voldy ·2009-04-04 08:37:17

sky's spot on .this one deserves a pink :) . truly .

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

skygirl ·2009-04-04 08:29:16

actually if a solution consists of two components A and B ...

then,

we call A as the solvent .. only n only when

amount of A > amt of B -------------> basic defn of solvent.

and the whole question was based on only this defn... :)

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

prateek punj ·2009-04-04 05:23:23

yaar it's correct.....question as well as solution.....

UP 0 DOWN 0
Post on FacebookPost anonymously?

11

Anirudh Narayanan ·2009-04-04 01:12:58

u mean that "mole fraction of etOH is 0.9" question??

UP 0 DOWN 0
Post on FacebookPost anonymously?

21

tapanmast Vora ·2009-04-04 04:52:38

pl. read the solution toooo.............

is it incrrct or wat??

the quantity in excess should be taken as solvent

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

vector ·2009-04-04 04:22:49

hey wat i thought was first to mole fraction as most of the people has defined above tht s less conc wala solute hai n one more thing the solute is non disosiative n water is 100% non dissosiative so its the solute

UP 0 DOWN 0
Post on FacebookPost anonymously?

21

tapanmast Vora ·2009-04-04 04:17:20

hope u can (JUUS ) read it

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

vector ·2009-04-04 04:06:58

actually i did dis q bt abhi maine q gum kar diya so how can i help without q [2]

UP 0 DOWN 0
Post on FacebookPost anonymously?

21

tapanmast Vora ·2009-04-04 03:42:06

SOLUTION BY Career Point :

1st Questn :

3rd Que :

UP 0 DOWN 0
Post on FacebookPost anonymously?

21

tapanmast Vora ·2009-04-04 03:37:52

Sir, ethanol bhi to dilute hota hai .........

Jo pine layak hota hai woh bhi to dil. karte hain....... [3]

UP 0 DOWN 0
Post on FacebookPost anonymously?

1357

Manish Shankar ·2009-04-04 03:33:29

yes here water is solute and ethanol is solvent

This can be known from the question itself----In the question, it is mentioned dilute solution.......so how can solution be dilute in ethanol is the solute