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

Answer:

pH of the aqueous solution is 1.26

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