Answer:
pH of the HI solution =4.13 .
Step-by-step explanation:
0.0000734 M concentration of Hl is the same as saying that 7.34 *10-5 moles of H+ ions have been added to solution.
pH of HI = -log[H+]
The -log[0.0000734] =4.1343.
pH of the HI solution =4.13.