Question

Calculate particles in 52 amu of He

Answer 1

4g of He has 1 mole 1g of He has 1/4 mole 52g of He has 1/4x52 = 13 moles 1 mole=6.022x10^23atoms. OR Atomic mass of Helium is 4u = 2protons + 2 Neutrons = 1 atom. No. of atoms in 52u = 52/4 = 13 atoms.

Answer 2

Answer:

Number of helium atoms are 13.

The number of particles in 52 amu of He is $7.8286\times 10^{24}$ atoms

Explanation:

Mass of helium = 52 amu (atomic mass unit )

Atomic mass of 1 helium atom= 4 amu

Number of atoms of helium =$\frac{52 amu}{4 amu}=13 atoms$

Number of helium atoms are 13.