How many grams are in 4.28 x 10^2 atoms of Ca?
Calculating the Mass of 4.28 x 10^2 atoms of Ca
To calculate the mass of 4.28 x 10^2 atoms of Ca in grams, we can use the formula:
Mass = (Number of atoms x Atomic mass of Ca) / Avogadro's number
Given data:
Number of atoms = 4.28 x 10^2
Atomic mass of Ca = 40.08 grams
Avogadro's number = 6.02 x 10^23 atoms/mol
Substitute the values into the formula:
Mass = (4.28 x 10^2 x 40.08) / 6.02 x 10^23
Mass = 171.624 / 6.02 x 10^23
Mass ≈ 2.85 grams
Hence, the mass of 4.28 x 10^2 atoms of Ca is approximately 2.85 grams.