What is the conjugate acid of #"iodide ion"#, #I^-#?
The conjugate acid of
The conjugate base of any acid is the original acid LESS a proton, i.e.
And thus the conjugate acid of
For any acid, to find the conjugate base, simply remove a proton, and conserve mass and charge. To find the conjugate acids, simply add a proton, and likewise conserve mass and charge.
What are the conjugate acids of