Ask a Question

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_

in Education by
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

1 Answer

0 votes
by
Correct Answer - a.1F ,b.4.44F a. Ca2++2e-→Ca Thus, 1molofCa,i.e.,40g of Ca require electricity =2F ∴20g of Ca will require electricity =3F b. Al3++3e-→Al ∴40gofAl will require electricity = 3 27 ×40 =4.44F

Related questions

0 votes
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
0 votes
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
0 votes
Q: Consider the reaction `:` `Cr_(2)O_(7)^(2-)+14H^(+)+6e^(-) rarr 2Cr^(3+)+7H_(2)O` What is the quantity of electricity in coulombs needed to reduce `1
    Consider the reaction : Cr2O 2- 7 +14H++6e-→2Cr3++7H2O What is the quantity of electricity in coulombs needed to ... Cr2O 2- 7 ? Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: What is a nuclear fission reaction ? Explain the principle of atomic bomb and working of a nuclear reactor to produce electricity.
    What is a nuclear fission reaction ? Explain the principle of atomic bomb and working of a nuclear reactor to produce electricity. Select the correct answer from above options...
asked Jan 2, 2022 in Education by JackTerrance
0 votes
Q: Odds in favour of an event A are 2 to 1 and odds in favour of `A cup B` are 3 to 1. Consistant with his information the smallest and largest values fo
    Odds in favour of an event A are 2 to 1 and odds in favour of A∪B are 3 to 1. Consistant with his information ... 3 4 D. none of these Select the correct answer from above options...
asked Nov 15, 2021 in Education by JackTerrance
0 votes
Q: Determine the amount of `CaCl_(2)` (i = 2.47) dissolved in 2.5 L of water sucjh that its osmotic pressure is 0.75 atm at `27^(@)C`.
    Determine the amount of CaCl2 (i = 2.47) dissolved in 2.5 L of water sucjh that its osmotic pressure is 0.75 atm at 27∘C . Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: What is the relation between molar conductivity `(wedge_(m))` and equivalent conductivity `(wedge_(eq))` of potash alum `[K_(2)SO_(4).Al_(2)(SO_(4))_(
    What is the relation between molar conductivity (∧m) and equivalent conductivity (∧eq) of potash alum [K2SO4.Al2(SO4)3.24H2O ? Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: The cell in whiCHM the following reaction occurs `:` `2Fe^(3+)(aq)+2I^(c-)(aq) rarr 2Fe^(2+)(aq)+I_(2)(s)` has `E^(c-)``_(cell)=0.2136V` at `298K`. Ca
    The cell in whiCHM the following reaction occurs : 2Fe3+(aq)+2Ic-(aq)→2Fe2+(aq)+I2(s) has Ec- _(cell ... constant of the cell reaction. Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: The reactions `:2CO(g)=O_(2)9g)rarr 2CO_(2)(g)` and `2NO(g)+O_(2)(g) rarr 2NO_(2)(g)` look to be similar. Yet the former is slower than latter at same
    The reactions :2CO(g)=O29g)→2CO2(g) and 2NO(g)+O2(g)→2NO2(g) look to be similar. Yet the former is ... at same temperature. Why ? Select the correct answer from above options...
asked Jan 4, 2022 in Education by JackTerrance
0 votes
Q: Calculate the osmotic pressure in pascals exerted by a solution prepared by dissolving `1.0g` of polymer of molar mass `185,000` in `450mL` of water a
    Calculate the osmotic pressure in pascals exerted by a solution prepared by dissolving 1.0g of polymer of molar mass 185 ... at 37∘C . Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: Arrange the following metals in the order in whiCHM they displace eaCHM other from the solution of their salts. `Al, Cu, Fe, Mg, ` and `Zn`.
    Arrange the following metals in the order in whiCHM they displace eaCHM other from the solution of their salts. Al,Cu,Fe,Mg, and Zn . Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: Two elements `A` and `B` form compounds having molecular formula `AB_(2)` and `AB_(4)`. When dissolved in `20 g` of benzene, `1 g`of `AB_(2)` lowers t
    Two elements A and B form compounds having molecular formula AB2 and AB4 . When dissolved in 20g of benzene, 1g of AB2 ... of A and B . Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: The boiling point of water at `750mm Hg` is `99.63^(@)C`. How muCHM sucrose is to be added to `500 g` of water suCHM that it boils at `100^(@)C`.
    The boiling point of water at 750mmHg is 99.63∘C . How muCHM sucrose is to be added to 500g of water suCHM that it boils at 100∘C . Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: How muCHM molecular mass of `NaCl` is obtained experimentally using colligative properties ?
    How muCHM molecular mass of NaCl is obtained experimentally using colligative properties ? Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: Silver is conducting as such while `AgNO_(3)` is conducting in molten state or in aqueous solution. Explain ?
    Silver is conducting as such while AgNO3 is conducting in molten state or in aqueous solution. Explain ? Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance

© Copyright 2018-2023 www.Blogmepost.com. All rights reserved. Developed by Blogmepost.

...