How many mole are represented by 118 g of cobalt?

To find the number of moles, you can use the formula: moles = mass (g) / molar mass (g/mol). The molar mass of cobalt (Co) is approximately 58.93 g/mol. Therefore, for 118 g of cobalt, the calculation is 118 g / 58.93 g/mol, which equals about 2.00 moles of cobalt.