ICE Table Helper (1:1 reaction)

ICE tables track Initial, Change, and Equilibrium concentrations. For the 1:1 reaction A ⇌ B the algebra collapses to a single exact formula — no quadratic, no small-x approximation needed.

ICE Table Helper (1:1 reaction)

$x = \frac{K_c[A]_0 - [B]_0}{1 + K_c}$

Solve for

Equilibrium constant (Kc)

Unit

Initial [A] ([A]₀)

Unit

Initial [B] ([B]₀)

Unit

Result unit

How to interpret the result

Worked check: A ⇌ B with [A]₀ = 1.00 M, [B]₀ = 0, Kc = 4.0 → x = (4.0×1.00 − 0)/5.0 = 0.800 M; [A] = 0.200 M, [B] = 0.800 M. Verify: 0.800/0.200 = 4.0 = Kc. ✓

Assumptions

Strictly 1:1 stoichiometry (A ⇌ B)
Exact solution — no small-x approximation involved