determine the density in copper at 1305K. 1 mole of vacancies in copper is 104kJ. The answer I calculated this time is 8.4572*10^22. I am not sure if this correct. Thanks.
To determine the density of copper at a specific temperature (1305K), you would need to know the molar mass of copper, the volume of the material, and the number of moles.
It seems that the information you provided is about the energy associated with vacancies in copper, which is not directly related to calculating density.
To determine the density of copper at a given temperature, you could use the following steps:
1. Find the molar mass of copper: The molar mass of copper (Cu) is approximately 63.55 g/mol. This value represents the mass of one mole of copper atoms.
2. Calculate the number of moles: Determine the number of moles of copper involved. Unfortunately, the information you provided does not directly relate to the number of moles. It seems to be related to the energy associated with vacancies, not the number of moles.
3. Determine the volume: To calculate the density, you need to know the volume of the copper sample. Without this information, it is not possible to determine the density.
Without the volume of the copper sample, it is not possible to calculate the density using the information provided. Therefore, the result you obtained (8.4572*10^22) is not correct because it does not represent the density of copper at a specific temperature.
If you provide the volume of the copper sample, I can assist you further in calculating the density.