Five examples of ions that give protons are:
1. Hydronium ion (H3O+) is formed when a hydrogen ion (H+) and a water molecule combine. It can donate a proton to a base and is commonly found in aqueous solutions.
2. HSO4 is a strong acid ion that can donate a proton to a base. When sulfuric acid (H2SO4) loses a proton, it is formed.
3. Acetic acid ion (CH3COO) is a weak acid ion that has the ability to donate a proton to a base. When acetic acid (CH3COOH) loses a proton, it is formed.
4. Ammonium ion (NH4+) is formed when ammonia (NH3) and hydrogen ion (H+) combine. It is capable of donating a proton to a base while leaving ammonia behind.
5. Most common example of an ion that gives protons is hydrogen ion (H+). When a hydrogen atom loses an electron, it leaves only a proton and no electrons.