Question

How many coulombs are required to produce 27gm of silver from AgNo3

Answer 1

Answer:

Explanation:

Al2O3+6e−→2Al+3O2− 6mol 2mol

The charge Q on n mol of electrons is given by Q=nF

Thus,quantity of electricity required to deposit 2 moles of aluminium, Q=6mol×96500 C mol−1=579000C=5.79×105C

Molar mass of Al =27 g mol−1

Mass of 2 mol of Al=2mol×27gmol−1=54g

∴54gofAl is produced by electric charge=5.79×105C

50gofAl is produced by electric charge=(5.79×105C)(564g)(50g)=5.361×105C

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