calculate the mass of the following numbers of atoms:
a] 6.022 X 10^24 atoms of tantalum
To calculate the mass of a given number of atoms, you will need to know the atomic mass of the element. For tantalum (Ta), the atomic mass is approximately 180.94 grams per mole (g/mol).
To calculate the mass of 6.022 x 10^24 atoms of tantalum, you can use the following steps:
Step 1: Convert the given number of atoms to moles.
To do this, divide the given number of atoms by Avogadro's number, which is 6.022 x 10^23 atoms/mol. This will give you the number of moles.
Number of moles = (6.022 x 10^24 atoms of tantalum) / (6.022 x 10^23 atoms/mol)
Number of moles = 10
Step 2: Convert moles to grams.
Multiply the number of moles by the atomic mass of tantalum (180.94 g/mol) to get the mass in grams.
Mass = (Number of moles) x (Atomic mass)
Mass = 10 mol x 180.94 g/mol
Mass = 1809.4 grams
Therefore, the mass of 6.022 x 10^24 atoms of tantalum is approximately 1809.4 grams.