Question

The mole% of forsterite component in olivine with chemical formula Mg₁₋ₓFeₓSiO₄ is

Hint:

To calculate the mole percent of a component in a solid solution, multiply the mole fraction by 100.

Answer 1

Step 1: Understanding the question.
Forsterite is the magnesium end-member of the olivine solid solution. In olivine with chemical formula Mg₁₋ₓFeₓSiO₄, the mole fraction of forsterite is (1 - x), where x is the mole fraction of the Fe component.
Step 2: Analyzing the solution.
To calculate the mole percent of forsterite, we use the formula (1 - x) × 100. This gives the mole percentage of the forsterite component in the olivine crystal.
Step 3: Conclusion.
The correct answer is (1 - x) × 100, which gives the mole percent of forsterite in olivine.