Calculate the pH of M HCl.
A) 4.41
B) 9.59
C) 13.75
D) 6.90
E) none of these

Name: Calculate the pH of M HCl. A) 4.41 B) 9.59 C) 13.75 D) 6.90 E) none of these
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Question

Calculate the pH of  M HCl.
A) 4.41 
B) 9.59 
C) 13.75 
D) 6.90 
E) none of these

Quizplus · Accepted Answer

HCl is a strong acid, which means it completely dissociates in water to form H+ ions and Cl- ions. 
HCl → H+ + Cl-
Since the concentration of HCl is 11 M, the concentration of H+ ions will also be 11 M. 
pH = -log[H+]
pH = -log(11)
pH = 4.41 (rounded to two decimal places)

Calculate the PH of M HCl