Question

How many atoms are there in 5.7 mol of hafnium?

Answer 1

In 5.70 mol of Hafnium there are 34,326 208 203*10^23 atoms.

Answer 2

Answer:There are $3.43\times 10^{24} atoms$ in 5.7 mol of hafnium.

Explanation:

Moles of hafnium = 5,7 moles

1 mol = $N_A=6.022\times 10^{23} atoms$

Number of atoms in 5.7 moles of hafnium :

$=5.7\times 6.022\times 10^{23} atoms=3.43\times 10^{24} atoms$

There are $3.43\times 10^{24} atoms$ in 5.7 mol of hafnium.