What is the atomic mass of Torretite using the following data?
Tarretite-125: 125.22 amu 59.98 %
Torretite-300: 300.11 amu 40.02 %
To find the atomic mass of Torretite, we need to calculate the weighted average of the atomic masses of Tarretite-125 and Torretite-300.
Atomic mass of Tarretite-125 = 125.22 amu
Percentage abundance of Tarretite-125 = 59.98%
Contribution to atomic mass = (125.22 amu x 59.98%) = 75.11 amu
Atomic mass of Torretite-300 = 300.11 amu
Percentage abundance of Torretite-300 = 40.02%
Contribution to atomic mass = (300.11 amu x 40.02%) = 120.10 amu
Total contribution to atomic mass = 75.11 amu + 120.10 amu = 195.21 amu
Therefore, the atomic mass of Torretite is 195.21 amu.
To calculate the atomic mass of Torretite, you need to use the weighted average formula.
The weighted average formula is:
Atomic mass = (mass 1 * % abundance 1 + mass 2 * % abundance 2) / 100
Using the given data:
- Tarretite-125 has a mass of 125.22 amu and an abundance of 59.98%.
- Torretite-300 has a mass of 300.11 amu and an abundance of 40.02%.
Let's calculate the atomic mass of Torretite using these values:
Atomic mass = (125.22 * 59.98 + 300.11 * 40.02) / 100
Now, let's substitute the values and calculate:
Atomic mass = (7511.8516 + 12010.2002) / 100
Atomic mass = 19522.0518 / 100
Atomic mass = 195.22 amu
Therefore, the atomic mass of Torretite is 195.22 amu.