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Define cell constant. How is it related to conductivity.?

what is debye huckel onsagers equation?

.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.

what is salt bridge?

explain its function?

_{2}SO_{4}:_{4}solution is connected in series ?$2Cr\left(s\right)+3Cd+2\left(aq\right)\underset{}{\to}2C{r}^{+3}\left(aq\right)+3Cd\left(s\right)\phantom{\rule{0ex}{0ex}}{E}_{C{r}^{+3}/Cr}^{0}=-0.74V,{E}_{C{d}^{+2}/Cd}^{0}=-0.40V$

(1) - 196.86 kJ/mol (2) - 98.43 kJ/mol

(3) - 65.62 kJ/mol (4) - 164.05 kJ/mol

Calculate the potential of hydrogen electrode in contact with a solution whose pH is 10.

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

Why does a dry cell become dead after a long time even if it has not been used?

is kohlrausch's law same for weak and strong electrolytes??

if so, why?

what is discharge potential ?

The products of electrolysis of molten NaCl are Na metal and Cl

_{2}gas, while the products of electrolysis of aqueous solution of NaCl are NaOH, Cl_{2}and H_{2}.Please explain this in detail with the appropriate reactions.

q 2 pls

Q2. The value of molar conductivity of HCl is greater than that of NaCl at a particular temperature because

:

(1) Molecular mass of HCl is less than that of NaCl. (2) Velocity of H

^{+}ions is more then that of Na^{+ }ions(3) HCl is strongly acidic (4) Ionisation of HCl is larger than that NaCl.

what is the difference between E cell and E

^{0 cell??}How does electrochemical series help us in predicting whether a redox reaction is feasible in a given direction or not.

^{–6 }mho cm^{–1}. Find the solubility product of AgCl at 25°C.$\left({\mathrm{\lambda}}_{\mathrm{AgCl}}^{\infty}=138.3\mathrm{mho}{\mathrm{cm}}^{2}\right)$

what is redox coupleAn acidic solution of Cu

^{+2}salt containing 0.4g of Cu^{+2}is electrolysed untill all the copper is deposited. The electrolysis is continued for 7 more minutes with the volume of solution kept at 100ml and the current at 1.2 ampere. Calculate volume of gases evolved at NTP during the entire electrolysis. (Atomic mass of Cu = 63.5) .why does mercury cell give a constant voltage throughout its life?

_{2 }soultion (11 g in 500 ml), it records a resistance of 990 ohms. If specific conductance of 0.05M KCl is 0.00189ohm^{-1 }cm^{ -1 }calculate(i) equivalent conductance of CaCl_{2 }solutionHere are a list of q'z pls ans. them briefly

q1)The number of faradays required to deposit 1g equivalent of alumininium(at wt.27)from a soln of AlCl3 is-

q2)What is the electrochemical equivalent of Cu in the rxn-

Cu2++2e---------Cu

q3)The specifc conductance of saturated soln of CaF2 is 3.86*10(power -15) and that of water used for solution is 0.15*10(power -5).What is the specific conductance of CaF2 alone?

q4)What is the molar conductivity "^". If resistivity is 'x' for 0.1 N H2SO4 solution?

q5)The conductivities at infinite dilution of NH4CL,NAOH and NaCl are 130,218,120.If equivalent conductance of N/100 soln of NH4OH is 10,degree of disociation of NH4OH at this dilution is-

q6)The resistance of a N/10 KCL aq. soln is 245 ohms.If the electrodes in the cell are 4cm apart and area having 7 cm sq. each,the molar conductance of the soln will be?

how to take out the log of 13 * 10 power 6please explain properly

!!!!

4/3 Al+O

_{2}gives out 2/3 Al_{2}O_{3.}Find the minimum emf required to carry out the electrolysis of Al_{2}O_{3.}delta G=-827kJ per mol of O

_{2}how to find the value of "n" for nernst equation from a cell equation or chemical reaction in a cell?

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

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 electrodesa) H

_{2}SO3b) NH

_{4}OHc) Ca(NO

_{3})_{2}d) HCN

What is the factors affecting electrode potential ?

^{3}) C is measured at 20^{0}C. The slope of a plot of $\mathrm{\pi}$ against C is found to be 4.65 x 10^{-3}. The molecular weight of the insulin is(A) 3 x 10

^{5}(B) 9 x 10^{5}(C) 4.5 x 10^{5}(D) 5.16 x 10^{5}_{2}(10 atm), HCl(0.1M) // HCl (1M) / Cl_{2}(10 atm), P, Cell potential is (SRP of chlorine electrode is + 1.36 V)(1) + 1.48 (2) + 1.39 V (3) + 1.36 V (4) +1.42 V

construction working and uses of daniell cell

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

what is the log of 10 raise to power -4?

What is the difference between galvanic cell & daniel cell?

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

Cr

_{2}O_{7}^{-2}+14 H^{+}+ 6e^{-}--------------- 2Cr^{+3}+7 H_{2}0The standard electrode potential is given as 1.33V.???

Q. Correct the following statement:

for a strong electrolyte, the plot of equivalent conductance versus concentration of the solution is a straight line.

1. 1 : 2 : 3 2. 3 : 2 : 1 3. 6 : 3 : 2 4. 3 : 4 : 2

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.

What is the function of porous pot in daniell cell ?

The conductivity of

0.1M solution of AgNO_{3}is9.47 X 10S cm^{-3}^{-1 }at 291 K. The ionic conductivities os Ag^{+}and NO_{3}^{-}at the same temperature are55.7and50.8Scm^{2}equiv^{-1}respectively. Calculatethe degree of dissociationof AgNO_{3}in 0.1 M solution. How to solve this and what's the meaning of ionic conductivities of the ions given here?^{3}-sp^{3}(2) sp-sp (3) sp^{2}-sp^{2}(4) All of thesefor the reaction 3A(g)+B(g)=2C(g) at a given temperature,Kc=9.0 . what must be the volume of the flask, if a mixture of 2.0 mole each of A,B and C exist in equilibrium?

^{-1}cm^{2}/ mol. At the same temperature, but at a concentration of 1 mole in 1000 litres, it is 55 ohm^{-1 }cm^{2}/ mol. what is the percentage dissociation of acetic acid?How to draw the resonating structures of H2SO4 and H2SO5 ???

36.0.05 Faraday charge is passed in 100 ml, 0.1 M NaCl solution. Calculate the final pOH of the solution. Assume volume remains constant.Silver is electrodeposited on a metallic vessel of surface area 800 cm2 by passing

current of 0.2 A for 3 hours. Calculate the thickness of silver deposited.What are the major topics of electrochemistry that can be asked in Chemistry Board Exam..

I mean.. right now it is no point studying this chapter from scratch.. there is?

What all should be studied in Electrochemistry for Chemistry Board?

why is alternating current used instead of direct current in measuring electrolytic conduction ?

- Mg
- Ag

The emf of the cell is 2.96 V at [Mg_{(s)}| Mg^{2+}_{(aq) }_{(s) }| Ag^{+}(aq)^{2+}] = 0.130 M and [Ag^{+}] = 1.0 * 10^{-4}M. Calculate the standard emg of the cell ( R = 8.3 JK^{-1}mol^{-1 }, F = 96500 C )I am asking this question 2nd time soo plzz give me the answer this time.

calculate the equivalent conductance of 1 M h2so4 solution if its conductivity is 2.6x10 to the power -2 /ohm cm

give a test to distinguish b/w ethylamine and aniline ?

1)wire of length 100m and cross sectional area 100m^2

2)wire of length 10m and cross sectional area 10m^2

3)one meter cube of a material

4)equal in all cases

The metals that cannot be obtained by electrolysis of an aqueous solution of its salt is:

I) Ca

ii)Cu

iii)Cr

iv)Ag

Q.104. The covalent and van der Waal's radii of hydrogen respectively are

(1) 0.37 Å, 0.8 Å

(2) 0.37 Å, 0.37 Å

(3) 0.8 Å, 0.8 Å

(4) 0.8 Å, 0.37 Å

state two advantages of (H

O_{2}_{2}) fuel cell over ordinary cell.answer it fastly!!!!!

_{3}+ OCl^{–}→ N_{2}H_{4}+ Cl^{–}in basic medium, the coefficients of NH_{3}, OCl^{–}and N_{2}H_{4}for the balanced equation are respectively(a) 2, 2, 2 (b) 2, 2, 1 (c) 2, 1, 1 (d) 4, 4, 2

a voltanic cell is set up in 25 degre c Al|Al3+(0.001M) and Ni| Ni2+(0.50M) calculate cell voltage

ans -1.46v

Q34.1 mole of a diatomic gas is contained in a piston. It gains 50.0J of heat and work is done on the surrounding by system is - 100 J. Thus,$\left(A\right)thegaswillcoolby2.41\xb0\phantom{\rule{0ex}{0ex}}\left(B\right)thegaswillheatby2.41\xb0\phantom{\rule{0ex}{0ex}}\left(C\right)thegaswillcoolby3.61\xb0\phantom{\rule{0ex}{0ex}}\left(D\right)thegaswillheatby3.61\xb0$

^{2}^{+}/ Fe) = -0.44 V ] to prevent corrosion and why ?Given E° (A

^{2}^{+ }/ A) = -2.37 V and E° (B^{2+ }/ B ) = -0.14 VThe resistance of a conductivity cell containing 0.001M KCl solution is 1500 ohm. What is the cell constant if conductivity of the solution at 298K is 0.000146 S/cm.

Represent the cell made up of the following cell reactions:

Mg>>>>Mg

^{2+ }(0.01 M)+2e E^{0 }=+2.34 VSn

^{+2 }(0.1 M) +2e>>>>Sn E^{0 }=-0.136 VCalculate the emf of the above cell at 25

^{0 }CCu does not dissolve in HCl but dissolves in nitric acid. Explain why?

how is equilibrium constant related to standard electrode potential of the cell?give mathematical expression.

Why mercury does not form amalgam with Iron?

For how long a current of 1.5 ampere has to be passed through the electrolyte innorder to deposit 1g of Al when the electrode reaction is

Al

^{3+}+3e → Al (Z=27)