Determine the number of atoms in the following chemical formula: 3Mg(OH4)2 A. 33
B. 30
C. 13
D. 19

The number of atoms : 33

Given

The chemical formula: 3Mg(OH₄)₂

Required

The number of atoms

Solution

The chemical formula of a compound shows the mole ratio and the number of each of its constituent components (number of atoms)

Usually, the ratio of the elements in a compound is indicated by their subscript number after the monoatomic or polyatomic in the compound

While the coefficient in front of the compound indicates the number of molecules

In the chemical formula 3Mg (OH₄) ₂, there are 3 molecules of Mg (OH₄) ₂, so the number of atoms of the elements:

Mg = 3

O = 3 x 2 = 6

H = 3 x 4 x 2 = 24

Total atoms = 3 + 6 + 24 = 33

what is the volume occupied by 40 grams of argon gas (ar) at standard conditions? what volume, in liters, is occupied by 1.5 x 1023 

the answer is c i believe