Question

Question #94f7e

Answer 1

The mass of nickel that plates out is 16.4 g.

The half-reaction for the reduction of nickel is

Ni²⁺ + 2e⁻ → Ni

You must make the conversions

minutes → seconds → coulombs → moles of electrons → moles of Ni → grams of Ni

Remember that 1 A = 1 C/s.

Mass of Ni = 60.0 min × `"60 s"/"1 min" × "15.0 C"/"1 s" × ("1 mol e"^-)/("96 500 C") × "1 mol Ni"/("2 mol e"^-) ×`

`"58.69 g Ni"/"1 mol Ni"` = 16.4 g Ni