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

107 amu
107 amu

73 amu
73 amu

219 amu
219 amu

75 amu

Answer 1

To calculate the atomic mass of Fe(OH)3, we need to consider the contributions from each element in the compound:

• Iron (Fe): 1 atom with an atomic mass of 56 amu
• Oxygen (O): 3 atoms with an atomic mass of 16 amu each
• Hydrogen (H): 3 atoms with an atomic mass of 1 amu each

Now we can calculate the total atomic mass:

1. For iron (Fe):

   • \( 1 \times 56 , \text{amu} = 56 , \text{amu} \)

2. For oxygen (O):

   • \( 3 \times 16 , \text{amu} = 48 , \text{amu} \)

3. For hydrogen (H):

   • \( 3 \times 1 , \text{amu} = 3 , \text{amu} \)

Now, we sum these values: \[ \text{Total atomic mass} = 56 , \text{amu} + 48 , \text{amu} + 3 , \text{amu} = 107 , \text{amu} \]

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