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NEET - NEET - Chemistry - Solutions

What are protic and aproticsolutions 

Asked by arnavvidudala20050 17th May 2020, 3:07 PM
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NEET - NEET - Chemistry - Solutions

On decreasing sodium which one of these will be true  ?    1. osmolarity will decrease 2. osmolality will decrease  3. both will decrease

Asked by astutijoshi 8th May 2020, 3:25 PM
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NEET - NEET - Chemistry - Solutions

please answer this

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Asked by Prashant DIGHE 28th February 2020, 10:01 PM
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NEET - NEET - Chemistry - Solutions

Please solve

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Asked by brijk456 3rd September 2019, 12:06 AM
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NEET - NEET - Chemistry - Solutions

Solve

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NEET - NEET - Chemistry - Solutions

A solution M is prepared by mixing ethanol and H2O.The mole fraction of ethanol in mixture is 0.9     . Given: Kf H20-1.86 Kkg/mol ,Kf ethanol-2.0 Kkg/mol ,Kb H2O-0.52 Kkg/mol ,Kb ethanol-1.2 Kkg/mol, Standard freezing point of H20- 273K , Standard freezing point of ethanol- 155.7K , Standard boiling point of H2O- 373K , Standard boiling point of ethanol-351.5K ,vp of pure water -32.8mm Hg,vp of pure ethanol -40mm Hg, mol wt of H2O - 18g/mol, mol wt of ethanol- 46g/mol                                . Consider the solutions to be ideal dilute solutions and solutes to be non volatile and non-dissociative                                                                                                                                        .Ques 1 ) The fp of solution M is: (a) 268.7K ,(b) 268.5 K ,(c) 234.2 K , (d) 150.9 K                          .Ques 2 ) The vp of solution M is: (a) 39.3mmHg ,(b) 36.0mmHg ,(c) 39.5mmHg ,(d) 28.8mmHg    .Ques 3) Wter is added to the solution M such that the mole fraction of water in solution becomes 0.9. The bp of this solution is : (a)380.4K ,(b)376.2K, (c)375.5K ,(d)354.7K

Asked by Balbir 30th July 2019, 6:16 PM
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NEET - NEET - Chemistry - Solutions

What is the composition of the vapour which is in equilibrium at 30 degree celcius with a benzene-toluene solution with a mole fraction of benzene of 0.400? (P0 B is 119 torr and P0 T is 37 torr)       (a) 1.237  (b) 2.237  (c) 3.237  (d) 0.237

Asked by Balbir 28th July 2019, 7:59 PM
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NEET - NEET - Chemistry - Solutions

By dissolving 5g substance in 50g of water, the decrease in freezing point is 1.2 degree celcius. The gram molal depression is 1.85 degree celcius. The molecular weight of substance is (a)105.4 (b)118.2 (c)137.2 (d)154.2  

Asked by Balbir 28th July 2019, 6:08 PM
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NEET - NEET - Chemistry - Solutions

Calculate the normality of 250 mL aqueous solution of H2SO4 having pH -0.0 (a)0.25 N (b)0.50 N (c)1 N (d)2 N

Asked by Balbir 9th July 2019, 10:25 PM
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NEET1 - NEET1 - Chemistry - Solutions

18%(w/V) solution of urea (mol.wt=60) is

Asked by priya47 28th September 2018, 6:12 PM
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