From the Periodic table, it can be determined that iron (Fe) has an atomic mass of 56 amu, oxygen (O) has an atomic mass of 16 amu, and hydrogen (H) has a mass of 1 amu. What would the atomic mass of Fe(OH) 3 be?(1 point)

Question

Responses

219 amu
219 amu

75 amu
75 amu

73 amu
73 amu

107 amu

Answer 1

To determine the atomic mass of Fe(OH)3, we need to know the atomic mass of each element and the number of each element in the compound.

Fe (iron) has an atomic mass of 56 amu.
O (oxygen) has an atomic mass of 16 amu.
H (hydrogen) has a mass of 1 amu.

In Fe(OH)3, there is 1 iron atom, 3 oxygen atoms, and 3 hydrogen atoms.

Atomic mass of Fe = 1 * 56 amu = 56 amu.
Atomic mass of O = 3 * 16 amu = 48 amu.
Atomic mass of H = 3 * 1 amu = 3 amu.

Therefore, the atomic mass of Fe(OH)3 would be:
56 amu + 48 amu + 3 amu = 107 amu.

So the correct answer is 107 amu.