`20 mL of 0.2MAl_(2)(SO_(4))_(3)` mixed with `20 mL` of `0.6M BaCl_(2)`. Calculate the concentration of each ion in solution.

Explanation

To solve the problem, we need to calculate the concentration of each ion present in the solution after mixing 20 mL of 0.2 M Al₂(SO₄)₃ with 20 mL of 0.6 M BaCl₂.

### Step-by-Step Solution:

1. **Calculate the number of millimoles of Al₂(SO₄)₃:**
- Molarity (M) = moles/volume(L)
- Volume of Al₂(SO₄)₃ = 20 mL = 0.020 L
- Molarity of Al₂(SO₄)₃ = 0.2 M
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