Answer:
5.54 x 10⁴ g
Step-by-step explanation:
Data Given:
Number of atoms = 3.35x10²⁶ atoms
Mass of Rh = ?
Solution:
First we have to find moles of Rh
Formula used to find no. of atoms
no. of moles = no. of atoms / Avogadro's number
Avogadro's number = 6.23 x 10²³ atoms
Put values in above Equation
no. of moles = 3.35x10²⁶ / 6.23 x 10²³ atoms
no. of moles = 0.538 x 10³ mol
Now
To find mass of Rh
Formula used to find mass Rh
no. of moles = mass in g / molar mass
Rearrange the above equation
mass in g = no. of moles x molar mass . . . . . . . . . . (1)
molar mass of Rh = 103 g/mol
Put values in the equation 1
mass in g of Rh= 0.538 x 10³ mol x 103 g/mol
mass in g of Rh = 5.54 x 10⁴ g