Question

ionic strength of 0.2 molar BaCl2​

Answer 1

Explanation:

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Answer 2

Answer:

0.6 mol/L is the ionic strength of BaCl₂.

Explanation:

• Ionic strength (I) is defined as an amount of ion concentration found in any solution.
• It deals with the ion interactions with water and other ions present.
• The formula of ionic strength is

I = $\frac{1}{2}$ (m₁z₁² + m₂z₂²)

where m is the ion concentration, z is ion charge and I is the ionic strength.

• The given data we have is:

1. The concentration of Ba⁺², m₁ = 0.2 M
2. The concentration of Cl⁻, m₂ = 0.2 × 2 = 0.4 M
3. Charge on Ba⁺², z₁ = +2
4. Charge on Cl⁻, z₂ = -1

We substitute these values in the formula.

I = $\frac{1}{2}$ ((0.2 × 2²) + (0.4 × (-1)²))

I = $\frac{1}{2}$ (0.8 + 0.4)

I = $\frac{1}{2}$ (1.2)

I= 0.6 mol/L

Conclusion:

The ionic strength of BaCl₂ is 0.6 mol/L.