Answer:
Mass of copper vaporized is 52,8g
Explanation:
The heat of vaporization (ΔHvap) is defined as the amount of energy you require to transform a quantity of liquid in gas. The formula is:
Q = ΔHvap×mass
Where Q is the amount of heat and mass is the mass of the compound.
If you required 254 kJ to vaporize a sample of copper which heat of vaporization is 4,81 kJ/g:
254kJ = 4,81 kJ/g × mass of copper
52,8g = mass of copper
I hope it helps!
