Question

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) o 107 amu o 73 amu o 75 amu o 219 amu

Explanation:

Step1: Identify elements and their quantities in Fe(OH)₃

Fe(OH)₃ has 1 Fe, 3 O, and 3 H.

Step2: Calculate atomic - mass contribution of each element

• For Fe: Atomic mass of Fe is 56 amu.
• For O: Atomic mass of O is 16 amu, and for 3 O it is 3×16 = 48 amu.
• For H: Atomic mass of H is 1 amu, and for 3 H it is 3×1 = 3 amu.

Step3: Calculate the atomic mass of Fe(OH)₃

Add the contributions: 56+48 + 3=107 amu.

Answer:

107 amu