The Problem:
* "0.12 each compound" is unclear. You need to specify what "each compound" refers to. Do you mean:
* 0.12 grams of Aluminum Sulfate?
* 0.12 moles of Aluminum Sulfate?
* 0.12 grams of some other compound?
How to Solve:
1. Identify the compound: You need to know the formula for Aluminum Sulfate, which is Al₂(SO₄)₃.
2. Determine the molar mass: Calculate the molar mass of Aluminum Sulfate (Al₂(SO₄)₃) by adding up the atomic masses of all the atoms in the formula.
3. Convert to moles:
* If you have 0.12 grams of Aluminum Sulfate: Divide the mass (0.12 g) by the molar mass to get the number of moles.
* If you have 0.12 moles of Aluminum Sulfate: You already have your answer!
Example:
Let's assume you have 0.12 grams of Aluminum Sulfate.
1. Molar mass:
* Al: 26.98 g/mol
* S: 32.07 g/mol
* O: 16.00 g/mol
* Al₂(SO₄)₃ = (2 * 26.98) + (3 * 32.07) + (12 * 16.00) = 342.15 g/mol
2. Convert to moles:
* Moles = Mass / Molar Mass
* Moles = 0.12 g / 342.15 g/mol
* Moles ≈ 0.00035 moles
Therefore, if you have 0.12 grams of Aluminum Sulfate, you have approximately 0.00035 moles of it.
