A solution of a trivalent metal ion is electrolysed by a current of 5.0A for 10 minutes during which time 1.18g of metal was plated out. The identity of the metal is:
Relative atomic masses:
1 faraday = 96,486 coulombs.
1 faraday = 1 mol of electrons
The Attempt at a Solution
3000/96486=0.031092 mol of electron
Since trivalent metal ion, mol of metal = 0.031092/3 = 0.010364 mols
Trial and error by dividing 1.18 by molar mass shows indium is closest. 1.18/114.82 = 0.1028. Is this the correct answer?