Question

question 10 · 1 point
what is the formula for the conjugate acid of dihydrogen phosphate, ( h_{2}po_{4}^{-} )?
select the correct answer below:
( \bigcirc hpo_{4}^{2 - } )
( \bigcirc h_{3}po_{4} )
( \bigcirc h_{2}o )
( \bigcirc oh^{-} )

Explanation:

Step1: Understand conjugate acid-base pair concept

A conjugate acid is formed when a base accepts a proton (\(H^+\)).

Step2: Analyze \(H_2PO_4^-\)

For \(H_2PO_4^-\) (a base in this context), when it accepts a \(H^+\) ion.
The reaction is \(H_2PO_4^-+H^+\to H_3PO_4\).
So the formula for the conjugate acid of \(H_2PO_4^-\) is \(H_3PO_4\).

Answer:

B. \(H_3PO_4\)