Proton Swaps

Donors and acceptors

An interactive lesson with 7 steps, about 6 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

• Acid: proton donor. Base: proton acceptor (uses a lone pair).
• Conjugate pairs differ by one H⁺; strong acid ↔ weak conjugate base.
• Water is both: Kw = [H₃O⁺][OH⁻] = 10⁻¹⁴.

Steps

1. Passing a proton
2. Draw the swap
3. A relay race for protons
4. Conjugate pairs
5. Ammonia as a base
6. Both at once
7. Find the acidic proton