Calculadora de Força Iônica
Calcule a força iônica de uma solução eletrolítica com base nas concentrações e cargas dos íons.
M
M
Ionic Strength
0.3000 M
Ionic Strength vs Concentration of Ion 1
Formula
## How to Calculate Ionic Strength ### Formula **I = 0.5 × Sum(c_i × z_i^2)** Ionic strength measures total charge concentration and affects activity coefficients.
Exemplo Resolvido
0.1 M CaCl2: 0.1 M Ca2+ and 0.2 M Cl-.
- 01I = 0.5 × (0.1 × 4 + 0.2 × 1)
- 02I = 0.5 × (0.4 + 0.2)
- 03I = 0.3 M
Perguntas Frequentes
What is ionic strength?
A measure of total ion concentration weighted by charge squared, used in Debye-Huckel calculations.
Why square the charges?
Highly charged ions have a disproportionately larger effect on the electrostatic environment.
How does ionic strength affect solubility?
Higher ionic strength generally increases solubility of sparingly soluble salts via the salt effect.
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