A weak acid in water
Grey = undissociated HA, red = H₃O⁺, blue = A⁻. Illustrative, not to scale: in 0.1 M acetic acid only about 1 molecule in 75 is ionised.
Grey = undissociated HA, red = H₃O⁺, blue = A⁻. Illustrative, not to scale: in 0.1 M acetic acid only about 1 molecule in 75 is ionised.