Reaction Solver

Balancer · Periodic table · Stoichiometry

OnlineSaved reactionsManual

01 Reaction input

02 Periodic table

6C

Carbon

Atomic number 6 · Molar mass 12.011 g/mol

Tap any element to see its atomic number and molar mass, or add it to your equation.

03 Molar mass & stoichiometry

Balance an equation to unlock the stoichiometry table.

04 Electrochemistry

Cu2+ + Zn → Cu + Zn2+

E°cell = 1.10 V · n = 2 e⁻

ΔG° = -212.3 kJ mol⁻¹

E (Nernst, Q = 1) = 1.100 V

Reduction (cathode): Cu²⁺ + 2e⁻ → Cu, E° = 0.34 V. Oxidation (anode, reversed): Zn²⁺ + 2e⁻ → Zn, E° = -0.76 V. E°cell = E°cathode − E°anode = 0.34 − (-0.76) = 1.10 V. Positive, so the cell reaction is spontaneous under standard conditions.

05 Kinetics

rate = 0.001000 mol dm⁻³ s⁻¹

rate = 0.05[A][B] — overall order 2, k in dm³ mol⁻¹ s⁻¹ (k units: dm³ mol⁻¹ s⁻¹)

t½ = 100.0 s

Eₐ = 91.9 kJ mol⁻¹

All 118 elements and every calculation run locally in your browser — no internet needed.