To calculate the mass in grams of a given number of atoms, you need to know the molar mass of the element.
The molar mass of sodium (Na) is approximately 22.99 grams per mole (g/mol). This means that one mole of sodium atoms weighs 22.99 grams.
To calculate the mass of 9.76 x 10^12 atoms of sodium, you can follow these steps:
Determine the number of moles of sodium atoms: Given the number of atoms (9.76 x 10^12 atoms), we need to convert it to moles by dividing it by Avogadro's number, which is approximately 6.022 x 10^23 atoms/mol.
Moles of sodium atoms = (9.76 x 10^12 atoms) / (6.022 x 10^23 atoms/mol)
Calculate the mass in grams: Multiply the number of moles obtained in step 1 by the molar mass of sodium to get the mass in grams.
Mass in grams = Moles of sodium atoms x Molar mass of sodium
Mass in grams = (Moles of sodium atoms) x (Molar mass of sodium) = (9.76 x 10^12 atoms) / (6.022 x 10^23 atoms/mol) x (22.99 g/mol)
Perform the calculation to find the mass in grams.
Note: The result will be a very small value since you are dealing with a small number of atoms.