Question

What is the pH of an aqueous solution if the [H") -0.055 M? A) 1.26 B) 2.26 C) 11.74 D) 1.74 E) 6258 E) 0.74

Answer 1

pH of the aqueous solution is 1.26

Step-by-step explanation:

• pH of a solution is the negative logarithm of molarity of
  `H^(+)` or
  `H_(3)O^(+)` ion in solution.

• Mathematically it is written as:
  `pH=-log[H^(+)]=-log[H_(3)O^(+)]` , where
  `[H^(+)]or [H_(3)O^(+)]` represents molarity of
  `H^(+)or H_(3)O^(+)` in solution.
• Here
  `[H^(+)]=0.055 M`. So,
  `pH=-log[H^(+)]=-log(0.055)=1.26`
• pH of the given aqueous solution is 1.26