Calculate N (number of moles) using the provided parameters and formula: N = m/RAM = (I t) / (z F).

Here's the solution using the information provided in the image. The question asks to find $N$ (number of moles). The image provides two ways to calculate $N$.

Given Parameters from the image:

• Relative Atomic Mass ($\text{RAM}$) = 119 g/mol
• Mass ($m$) = 26.6 g
• Current ($I$) = 8 A
• Time ($t$) = 400 s
• Valency ($z$) = 2
• Faraday's constant ($F$) = 96500 C/mol

We will calculate $N$ using both parts of the given formula: $N = \frac{m}{\text{RAM}} = \frac{I \times t}{z \times F}$.

Method 1: Calculate $N$ using mass and relative atomic mass.

$$N = \frac{m}{\text{RAM}}$$