Final answer:
To calculate the number of moles of cobalt in 48.86 g, divide the mass by the molar mass of cobalt (58.93 g/mol), resulting in approximately 0.829 moles of cobalt.
Step-by-step explanation:
To calculate the number of moles of cobalt in 48.86 g of cobalt, we use the molar mass of cobalt. The molar mass of cobalt (Co) is approximately 58.93 g/mol. The number of moles (n) is calculated by dividing the mass of the cobalt (m) by its molar mass (M).
The formula for this calculation is:
n = m / M
Thus the calculation will be:
Number of moles of cobalt = 48.86 g / 58.93 g/mol = 0.829 moles (approximately)
Therefore, 48.86 g of cobalt is equal to approximately 0.829 moles of cobalt.