How many moles are 40 grams of calcium metal

Answer 1

The molar mass of calcium (Ca) is approximately 40.08 g/mol.

To calculate the number of moles in 40 grams of calcium, we can use the formula:

Number of moles = Mass / Molar mass

Number of moles = 40 g / 40.08 g/mol

Number of moles = 0.998 moles

Therefore, 40 grams of calcium metal is equivalent to approximately 0.998 moles of calcium.