Equilibrium

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New answer posted

2 months ago

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A
alok kumar singh

Contributor-Level 10

Due to common ion effect solubility of AgCl will decreases in KCl, AgCl and AgNO3 but in deionized water, no common ion effect will takes place so maximum solubility.

New answer posted

2 months ago

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V
Vishal Baghel

Contributor-Level 10

Remaining volume of solution = 400 ml

Mass of HNO3 = 25.2 – 11.5 = 13.7

Molarity =  (13.7/63) (400/1000) = 0.54 M = 54 * 10-2 M

New answer posted

2 months ago

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A
alok kumar singh

Contributor-Level 10

Phenolphtalein is a pH dependant indicator. It is a weak acid which is colourless in acidic medium but gives pink colour in basic medium. The pink colour is due to its conjugate form. Phenolphthalein dissociates in basic medium. Therefore, assertion is true but reason is false.

HPh (aq.) (Colourless)? H++Ph (Pink)

New answer posted

2 months ago

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A
alok kumar singh

Contributor-Level 10

At equilibrium rate of forward and backward reaction becomes equal.

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Vishal Baghel

Contributor-Level 10

 2NO (g)+O2 (g)? 2NO2 (g)

Initial moles2mol1 mol

At equilibrium (2 – 2x) mole (1 – x) mol2x mol

no2 (1x)=0.6

x=0.4

nNO=22x=22*0.4

= 2 0.8 = 1.2

nNO2=2x=2*0.4=0.8

Kp= (0.82.6)2 (1.22.6)2 (0.62.6)

= 1.925

the nearest integer = 2.

New answer posted

2 months ago

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V
Vishal Baghel

Contributor-Level 10

HNO3    +            NaOH    ®          NaNO3      +        H2O

t = 0,     (600 * 0.2)meq    (400 * 0.1)meq    40 meq               40 meq

120 meq             40 meq

t =     80 meq               -

Total heat

...more

New answer posted

2 months ago

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V
Vishal Baghel

Contributor-Level 10

Due the absence of inversion and non resonating nature

New answer posted

3 months ago

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A
alok kumar singh

Contributor-Level 10

Sol.
           
 

 

New answer posted

3 months ago

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P
Payal Gupta

Contributor-Level 10

0.001 M NaOH solution has [OH-] = 0.001 M = 10-3 M

Using ; pOH = l o g 1 0 [ O H ]  

l o g 1 0 1 0 3

pOH = 3

pH = 14 – pOH

pH = 14 – 3

pH = 11

New answer posted

3 months ago

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V
Vishal Baghel

Contributor-Level 10

Answer: (a) A catalyst favours the formation of products

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