Final answer:
The formula mass of copper(II) fluoride (CuF2) is 101.55 amu, calculated by adding the atomic mass of one copper atom (63.55 amu) and two fluorine atoms (2 × 19.00 amu).
Step-by-step explanation:
The formula mass of copper(II) fluoride, which is represented as CuF2, can be calculated by summing the atomic masses of copper (Cu) and two fluorine (F) atoms.
The atomic mass of copper is approximately 63.55 amu and the atomic mass of fluorine is approximately 19.00 amu.
Using these values:
Cu: 1 × 63.55 = 63.55 amu
F: 2 × 19.00 = 38.00 amu
Total formula mass of CuF2 = 63.55 amu + 38.00 amu
= 101.55 amu