Final answer:
The conjugate bases of HIO3, NH4+, HCOOH, and HPO4- are IO3-, NH3, HCOO-, and PO43-, respectively. Each conjugate base is formed by removing one proton from the corresponding Bronsted-Lowry acid.
Step-by-step explanation:
To give the conjugate base for each Bronsted-Lowry acid provided, we need to determine what each species becomes after donating a proton (H+). Here they are:
- a. HIO3 - The conjugate base is IO3− (iodate ion).
- b. NH4+ - The conjugate base is NH3 (ammonia).
- c. HCOOH - The conjugate base is HCOO− (format ion).
- d. HPO4− - The conjugate base is PO43− (phosphate ion).
Remember that the conjugate base is formed by removing a proton from the Bronsted-Lowry acid, leading to a decrease in the hydrogen atom count by one and an increase in the negative charge by one unit.