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Define cell constant. How is it related to conductivity.?
what is debye huckel onsagers equation?
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
what is salt bridge?
explain its function?
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 Cl2 gas, while the products of electrolysis of aqueous solution of NaCl are NaOH, Cl2 and H2.
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 E0 cell??
How does electrochemical series help us in predicting whether a redox reaction is feasible in a given direction or not.
what is redox couple
An 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?
Here 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-
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+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
how to find the value of "n" for nernst equation from a cell equation or chemical reaction in a cell?
Predict the products of electrolysis in each of the folloiwng:
What is the factors affecting electrode potential ?
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
Cr2O7-2 +14 H++ 6e---------------- 2Cr+3 +7 H20
The standard electrode potential is given as 1.33V.???
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 0.1 M solution of AgNO3 is 9.47 X 10-3 S cm-1 at 291 K. The ionic conductivities os Ag+ and NO3-at the same temperature are 55.7 and 50.8 Scm2equiv-1 respectively. Calculate the degree of dissociation of AgNO3 in 0.1 M solution. How to solve this and what's the meaning of ionic conductivities of the ions given here?
for 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?
How to draw the resonating structures of H2SO4 and H2SO5 ???
Silver is electrodeposited on a metallic vessel of surface area 800 cm2 by passing
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 ?
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 ?
The metals that cannot be obtained by electrolysis of an aqueous solution of its salt is:
state two advantages of (H2
answer it fastly!!!!!
a voltanic cell is set up in 25 degre c Al|Al3+(0.001M) and Ni| Ni2+(0.50M) calculate cell voltage
The 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>>>>Mg2+ (0.01 M)+2e E0 =+2.34 V
Sn+2 (0.1 M) +2e>>>>Sn E0 =-0.136 V
Calculate the emf of the above cell at 250 C
Cu 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
Al3+ +3e → Al (Z=27)
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