Question

Calculate the mass of 3.01 x 1024 atoms of P.​

Answer 1

155g

Step-by-step explanation:

To solve this problem, we have to derive the number of moles of the element given from the number of atoms first.

Number of atoms = 3.01 x 10²⁴ atoms

From mole concept;

6.02 x 10²³ atoms is found in 1 mole of a substance

3.01 x 10²⁴ atoms of P will contain
`(3.01 x 10^(24) )/(6.02 x 10^(23) )` = 5moles of P

Now;

Mass of P = number of moles x molar mass

Molar mass of P = 31g/mol

Mass of P = 5 x 31 = 155g