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

Question

be?(1 point)
Responses

73 amu
73 amu

75 amu
75 amu

107 amu
107 amu

219 amu

Answer 1

To calculate the atomic mass of Fe(OH)₃, we need to determine the masses of all the atoms in the compound.

1. Iron (Fe): 1 atom × 56 amu = 56 amu
2. Oxygen (O): 3 atoms × 16 amu = 48 amu
3. Hydrogen (H): 3 atoms × 1 amu = 3 amu

Now, we sum these values:

• Total atomic mass = 56 amu (Fe) + 48 amu (O) + 3 amu (H)
• Total atomic mass = 56 + 48 + 3 = 107 amu

Thus, the atomic mass of Fe(OH)₃ is 107 amu.

The correct response is:

107 amu