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Subject: Chemistry, asked on 5/7/13

4/3 Al+O2 gives out 2/3 Al2O3. Find the minimum emf required to carry out the electrolysis of Al2O3.

delta G=-827kJ per mol of O2

Subject: Chemistry, asked on 16/5/15


Molar conductivity at infinite dilution for NH4Cl, NaOH and NaCl solution at 298K are respectively 129.8, 218.4 and 108.9 Scm2 mol-1 and ^m for 10-2 M solution of NH4OH is 9.33 Scm2 mol-1. Calculate the degree of dissociation of NH4OH

Subject: Chemistry, asked on 10/3/14

Predict the products of electrolysis in each of the folloiwng:

(i) An aqueous solution of AgNO3 with silver electrodes.(ii) An aqueous solution of AgNO3 with plantinum electrodes.(iii) A dilute solution of H2SO4 with platinum electrodes

Subject: Chemistry, asked on 25/4/17

the ionic conductance of h+and so4-- are x and ys cm^2 mol^-1. hence equivalent conductivity of h2so4 is   1)2x+y/2  2)x+y/2   3)x/2+y    4)x/2+y/2

Subject: Chemistry, asked on 9/3/12


how to find log of .130-log of [.0001]2???

other than


learn this

log 10=1 log 100=2 log 1000=3 and so on.

now,coming to your question,

log 0.130 is same as log 130/1000.

log 130/1000 = log 130 - log 1000

= 2.113 - 3

= -0.8860.

Subject: Chemistry, asked on 20/5/12

What is the factors affecting electrode potential ?

Subject: Chemistry, asked on 1/10/16

9) Insulin is dissolved in a suitable solvent and the osmotic pressure π of solutions of various concentrations (g/cm3) C is measured at 200C. The slope of a plot of π against C is found to be 4.65 x 10-3. The molecular weight of the insulin is
(A) 3 x 105         (B) 9 x 105          (C) 4.5 x 105           (D) 5.16 x 105

Subject: Chemistry, asked on 9/5/13

What are metallic conductors and electrolytic conductors?plz give examples also

Subject: Chemistry, asked on 26/6/12

construction working and uses of daniell cell

Subject: Chemistry, asked on 16/5/13

 Q. Explain the Molar Conductivity with weak and strong electrolytes ?

Subject: Chemistry, asked on 14/8/12

Calculate the potential of the half cell containing 0.10M K2Cr2O7, 0.20M Cr+2, and 1.0* 10-4M H+. The half cell reaction is

Cr2O7-2 +14 H++ 6e---------------- 2Cr+3 +7 H20

The standard electrode potential is given as 1.33V.???

Subject: Chemistry, asked on 11/1/11

 What is the difference between galvanic cell & daniel cell?

Subject: Chemistry, asked on 10/4/18

Q.):-  Three faraday of electricity is passed through three electrolytic cells connected in series containing Ag+, Ca2+ and Al+3  ions  respectively.  The molar ratio in which the three metal ions are liberated at the electrodes is
1.  1 : 2 : 3              2.  3 : 2 : 1         3.  6 : 3 : 2          4.  3 : 4 : 2

Subject: Chemistry, asked on 22/12/12

Rate constant, K for first order reaction has been found to be 2.54*10 to the power -3 per sec. Calculate its three-fourth life.

Subject: Chemistry, asked on 6/4/15

two Faraday of electricity is passed through a solution of cuSo4.the mass of copper deposited at cathode is: at.mass of Cu= 63.5amu

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