Answer:
e) Na₃PO₄
Explanation:
a) BaSO₄
1 mole of BaSO ₄ = 6.022×10²³ molecules
1 mole of BaSO ₄ contain 1 atom of Ba one atom of S and four atoms of O.
Total number of atoms = 6 atoms
6.022×10²³ × 6 atoms = 36.132 ×10²³ atoms
b) NaNO₂
1 mole of NaNO₂= 6.022×10²³ molecules
1 mole of NaNO₂ contain 1 atom of Na one atom of N and two atoms of O.
Total number of atoms = 4 atoms
6.022×10²³ × 4 atoms = 24.088 ×10²³ atoms
c)KMnO₄
1 mole of KMnO₄ = 6.022×10²³ molecules
1 mole of KMnO₄ contain 1 atom of K one atom of Mn and four atoms of O.
Total number of atoms = 6 atoms
6.022×10²³ × 6 atoms = 36.132 ×10²³ atoms
d) KCl
1 mole of KCl = 6.022×10²³ molecules
1 mole of KCl contain 1 atom of K one atom of Cl.
Total number of atoms = 2 atoms
6.022×10²³ × 2 atoms = 12.044 ×10²³ atoms
e) Na₃PO₄
1 mole of Na₃PO₄ = 6.022×10²³ molecules
1 mole of Na₃PO₄ contain 3 atom of Na one atom of P and four atoms of O.
Total number of atoms = 8 atoms
6.022×10²³ × 8 atoms = 48.176×10²³ atoms
