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30 Dec 2007 15:37:58 IST
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OK Guys some of the questions are really easy
the purpose of this thread is for others to get some practice on tough problems also
so its better if u guys and gals do bring in some difficult problems
otherwise the true purpose of this thread will not be solved
HOPE U ALL UNDERSTAND..........
CHEERS!!!!!!!!!!
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30 Dec 2007 15:38:54 IST
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THE EASY QUESTIONS NOW GET A THUMBS UP AND THE DIFFICULT ONES A HAT..........
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30 Dec 2007 16:08:15 IST
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Calculate the concentrations of [Ag+] , [Br-] , [Cl-] , [Ag(NH3)2]+ , NH4 + ion and hydroxide ion in a solution wch results frm shaking excess AgCl and AgBr wid 0.02M
ammonia solution . Assume that no monoammine complex is formed. given :
ksp of AgCl = 1 x 10^-10 , AgBr = 5 x 10^-13 , NH3 = 1.8 x 10^-5 and
kf of [Ag(NH3)2]+ = 1 x 10^8.
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"your future depends on what u do in present"
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30 Dec 2007 19:03:27 IST
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Carboxylic acids are compounds that contain a "CO2H" group. Which of the following carboxylic acids will be the LEAST SOLUBLE in water? 
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Ken
From: UNITED STATES, Green Bay, Wisconsin
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30 Dec 2007 19:04:01 IST
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Which of the following correctly shows the hydrogen bonding between three methyl amine (CH3NH2) molecules? Note: the hydrogen bonds are represented as dashed lines. 
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Ken
From: UNITED STATES, Green Bay, Wisconsin
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30 Dec 2007 19:04:31 IST
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Ethanol (CH3CH2OH) is more soluble in water than butanol (CH3CH2CH2CH2OH) because: - ethanol is completely ionized.
- the longer hydrocarbon chain makes butanol more nonpolar than ethanol.
- the longer hydrocarbon chain makes butanol more polar than ethanol.
- there is hydrogen bonding between ethanol and water but none between butanol and water.
- ethanol forms a dimer and butanol does not.
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Ken
From: UNITED STATES, Green Bay, Wisconsin
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30 Dec 2007 19:11:03 IST
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Which of the following is NOT a Bronsted-type acid-base reaction? - NH3 (aq) + H3O+ (aq) <=> NH4+ (aq) + H2O (l)
- OH- (aq) + HNO3 (aq) <=> H2O (l) + NO3- (aq)
- HSO4- (aq) + NH3 (aq) <=> NH4+ (aq) + SO42- (aq)
- Zn (s) + 2 HCl (aq) <=> Zn2+ (aq) + H2 (g) + 2 Cl- (aq)
- 2 H2O (l) <=> H3O+ (aq) + OH- (aq)
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Ken
From: UNITED STATES, Green Bay, Wisconsin
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30 Dec 2007 19:21:40 IST
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Hey, to that least soluble.. guess it is the last D...since the hydrophobic(alkyl)part becomes more significant  . |
GIVE LIFE THE BEST
DO OR DIE, OR BETTER NEVER TRY!!
I dont want to be the most intelligent among the ten.i pray the other nine RE fools!???!!!!!!
it doesn't matter if you win... whats important to me is i win!!!!!!!! |
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30 Dec 2007 20:19:52 IST
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yes it should be D and for that H-Bonding question b should be the correct one .
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peepy n nice. |
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30 Dec 2007 21:03:20 IST
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Guys, PLEASE DON'T GIVE ANSWERS AND SOLUTIONS HERE. IF U WANT TO CONFIRM THE ANSWER, CONTACT THE AUTHOR OF QUESTION IN THE NUDGEBOOK OR TELL THE CREATOR OF THE FORUM TO START A THREAD FOR SOLUTIONS.
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Tarin Bansal
3rd year undergraduate
B.E. (Hons.) Electronics & Instrumentation
BITS-Pilani Goa Campus
Check out - www.theideacauldron.com |
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30 Dec 2007 21:39:40 IST
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Right comment by Tarin Bansal .
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Ken
From: UNITED STATES, Green Bay, Wisconsin
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30 Dec 2007 22:07:03 IST
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acc to me d ans to dat bronsted acid base quess is (d) Zn waala correct me if m wrong
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30 Dec 2007 22:07:59 IST
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h bond waala shud b (b)
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30 Dec 2007 22:08:28 IST
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h bond waala shud be(b)
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30 Dec 2007 22:09:11 IST
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carboxylic acid waala shud b (d)
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30 Dec 2007 22:22:19 IST
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Yaar siddharth,
Abhi Just above ur messages, I posted a message NOT TO POST ANSWERS OR SOLUTIONS HERE. Then why R U posting the answers. If U want to confirm, ask the author on his nudgebook.
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Tarin Bansal
3rd year undergraduate
B.E. (Hons.) Electronics & Instrumentation
BITS-Pilani Goa Campus
Check out - www.theideacauldron.com |
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30 Dec 2007 23:12:27 IST
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IIT 1996 One mole of N2O4(g) at 300 K is kept in a closed container under 1 atm.It is heated to 600 K when 20% by mass N2O4 decomposes to NO2(g).The resultant pressure is??
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AIR 2515 IIT JEE 2010
IIT Hyderabad Electrical Branch |
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31 Dec 2007 09:17:22 IST
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SEE GUYS I HAVE BEEN REPEATING THIS SINCE THE STARTING
PLZZZZZZZZZZZZZZ DONT POST UR ANSWERS HERE A SEPARATE THREAD WILL BE STARTED FOR THE ANSWERS
PLZZZ UNDERSTAND
THIS SHOULD BE FOR THE BENEFIT OF ALL GOIITIANS
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31 Dec 2007 09:24:17 IST
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Apurv is right Looking at answers before solving a question defeats the purpose of solving it.Remember purpose of solving a problem is not simply to get the answer but to develop your thinking ability
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AIR 2515 IIT JEE 2010
IIT Hyderabad Electrical Branch |
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31 Dec 2007 10:43:02 IST
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OK NOW THIS IS EASY. 2 MOLES OF ACETIC ACID AND 1 MOLE OF ETHANOL ARE HEATED IN A SEALED TUBE AT 100 CELCIUS. CALCULATE THE PERCENTAGE COMPOSITION IN MOLE PERCENTAGE OF THE REACTION MIXTURE AT EQUILIBRIUM. THE EQUILIBRIUM CONSTANT OF THE REACTION K AT THIS TEMPERATURE IS 4. WAT IS THE MOLE PERCENTAGE OF ESTER FORMED IF THE SAME REACTION WAS CARRIED OUT IN PRESENCE OF WATER?
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SUCCESS IS THE RESULT OF ASPIRATION INSPIRATION DESPERATION AND PERSPIRATION. |
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