Calculation of Moles Present in 60g of Calcium

To calculate the number of moles present in 60g of calcium, we need to use the concept of molar mass and Avogadro's number.

Molar Mass of Calcium
Calcium (Ca) has an atomic mass of approximately 40.08 g/mol.

Calculating Moles
To calculate the number of moles, we need to divide the given mass by the molar mass.

Moles = Mass / Molar Mass

Substituting the values:
Moles = 60g / 40.08 g/mol

Simplifying the Calculation
To simplify the calculation, we can use the given mass and molar mass to convert grams to moles.

60g * (1 mol / 40.08g) = 1.497 mol

Therefore, there are approximately 1.497 moles present in 60g of calcium.

Explanation
The molar mass of an element is the mass of one mole of that element. In this case, calcium has a molar mass of 40.08 g/mol. This means that one mole of calcium atoms weighs 40.08 grams.

To calculate the number of moles, we divide the given mass (60g) by the molar mass of calcium (40.08 g/mol). This calculation gives us the ratio of the given mass to the molar mass, resulting in the number of moles.

In the given example, 60g of calcium is equivalent to approximately 1.497 moles. This means that there are 1.497 moles of calcium atoms present in the given 60g mass.

Summary
To calculate the number of moles present in a given mass of calcium:
1. Determine the molar mass of calcium.
2. Divide the given mass by the molar mass to obtain the number of moles.
3. The result indicates the number of moles of calcium in the given mass. In this case, 60g of calcium corresponds to approximately 1.497 moles.