Multiple Choice
What is the overall charge on a sulfate ion (SO_4)?
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Polyatomic Ions
Multiple Choice
Which of the following is the conjugate acid of HPO_3^{2-}?
A
HPO_4^{2-}
B
PO_3^{3-}
C
H_2PO_3^{-}
D
H_3PO_4
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Verified step by step guidance1
Recall that a conjugate acid is formed when a base gains a proton (H\^+).
Identify the given species: HPO_3^{2-} is the base in this case.
Add one proton (H\^+) to HPO_3^{2-} to form its conjugate acid. This increases the hydrogen count by one and decreases the negative charge by one.
Write the formula of the conjugate acid by adding H and adjusting the charge: HPO_3^{2-} + H\^+ \(\rightarrow\) H_2PO_3^{-}.
Compare the options given to confirm which matches the formula of the conjugate acid formed.
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