Recent questions tagged Probability-questions

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Q: Calculate the standard cell potentials of galvanic cell in whiCHM the following reactions take place `:` `a. Cr(s) +3Cd^(2+)(aq) rarr 2Cr^(3+)(aq)+3Cd

Calculate the standard cell potentials of galvanic cell in whiCHM the following reactions take place : a.Cr(s)+ ... the reactions . Select the correct answer from above options...

asked Jan 5, 2022 in Education by JackTerrance

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Q: Write the Nernst equation and `EMF` of the following cells at `298K :` `a.` `Mg(s)|Mg^(2+)(0.001M)||Cu^(2+)(0.0001M)|Cu(s)` `b.` `Fe(s)|Fe^(2+)(0.001M

Write the Nernst equation and EMF of the following cells at 298K: a. Mg(s)|Mg2+(0.001M)||Cu2+(0.0001M)|Cu(s) b. ... )|H2(g)(1bar)|Pt(s) Select the correct answer from above options...

asked Jan 5, 2022 in Education by JackTerrance

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Q: In the button cells widely used in watCHMes and other devices the following reaction takes place : `Zn(s)+Ag_(2)O(s)+H_(2)O(l) rarr Zn^(2+)(aq)+2Ag(s)

In the button cells widely used in watCHMes and other devices the following reaction takes place : Zn(s)+Ag2O(s) ... for the reaction. Select the correct answer from above options...

asked Jan 5, 2022 in Education by JackTerrance

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Q: The conductivity of `0.20M` solution of `KCl` at `298K` is `0.0248 S cm^(-1)` . Calculate its molar conductivity.

The conductivity of 0.20M solution of KCl at 298K is 0.0248Scm-1 . Calculate its molar conductivity. Select the correct answer from above options...

asked Jan 5, 2022 in Education by JackTerrance

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Q: The resistance of a conductivity cell contaning `0.001M KCl` solution at `298K` is `1500Omega`. What is the cell constant if conductivity of `0.001M K

The resistance of a conductivity cell contaning 0.001MKCl solution at 298K is 1500Ω . What is the cell constant if ... 3Scm-3Scm-1 . Select the correct answer from above options...

asked Jan 5, 2022 in Education by JackTerrance

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Q: The conductivity of sodium CHMloride at `298K` has been determine at different concentrations and the results are given below `:` `{:(Concentration(M)

The conductivity of sodium CHMloride at 298K has been determine at different concentrations and the results are given below : ... ∘ m . Select the correct answer from above options...

asked Jan 5, 2022 in Education by JackTerrance

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Q: The conductivity of `0.00241 M` acetic acid is `7.896xx10^(-5)Scm^(-1)`. Calculate its molar conductivity. If `wedge_(m)^(@)` for acetic acid is `390.

The conductivity of 0.00241M acetic acid is 7.896 10-5Scm-1 . Calculate its molar conductivity. If ∧ ∘ ... its dissociation constant ? Select the correct answer from above options...

asked Jan 5, 2022 in Education by JackTerrance

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Q: How muCHM CHMarge is required for the following reductions `:` `a. 1 mol of Al^(3+) to Al` `b.` ` 1 mol of Cu^(2+) to Cu` `c.` `1 mol of MnO_(4)^(c-)`

How muCHM CHMarge is required for the following reductions : a.1molofAl3+→Al b. 1molofCu2+→Cu c. 1molofMnO c- 4 to Mn2+? Select the correct answer from above options...

asked Jan 5, 2022 in Education by JackTerrance

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Q: How muCHM electricity in terms of Faraday is required to produce. `a.` `20.0g` fo `Ca` from molten `CaCl_(2)` `b.` `40g` of `Al` from molten `Al_(2)O_

How muCHM electricity in terms of Faraday is required to produce. a. 20.0g fo Ca from molten CaCl2 b. 40g of Al from molten Al2O3 Select the correct answer from above options...

asked Jan 5, 2022 in Education by JackTerrance

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Q: How muCHM electricity is required in coulomb for the oxidation of ltbr. `a.` `1 mol of H_(2)O to O_(2)` `b`. `1 mool ` of `FeO` to `Fe_(2)O_(3)`

How muCHM electricity is required in coulomb for the oxidation of ltbr. a. 1molofH2O→O2 b . 1m∞l of FeO to Fe2O3 Select the correct answer from above options...

asked Jan 5, 2022 in Education by JackTerrance