what is the ph of a solution with a poh of 4.91? ph = ?

Explanation:

Step1: Recall the relationship between pH and pOH

We know that (pH + pOH=14) at (25^{\circ}C).

Step2: Solve for pH

Given (pOH = 4.91), we can find (pH) by rearranging the formula: (pH=14 - pOH). Substitute (pOH = 4.91) into the formula: (pH=14 - 4.91). [pH = 9.09]

Answer:

(9.09)