What is the pH of a solution with [OH-] = 5.8 x 10-10 M? Select one:

1.	What is the pH of a solution with [OH-] = 5.8 x 10-10 M? Select one: A. 5.80 B. 10.58 C. 4.76 D. 9.24
Answer» We are given that - [OH⁻] = *5.8 10⁻¹⁰ M We need to find - => pH of this solution. Procedure Used - Find the pOH USING -log₁₀[OH⁻ ] Subtract the pOH from 14 to get the pH (pH + pOH = 14) Let's Solve - => pOH = -log₁₀[5.8 * 10⁻¹⁰ ] ( log₁₀[5.8 * 10⁻¹⁰ ] = -9.236 ) => pOH** = -1 * -9.236 => pOH = 9.236 (approx.) => pH + pOH = 14 => pH + 9.236 = 14 => pH = 14 - 9.236 => pH = 4.764 => pH = 4.76 (rounded off to the nearest HUNDREDTHS) Answer - => Thus, the correct answer is (C) 4.76 . More to KNOW - => This compound has a pH below 7, so it is acidic. => It can be considered to be a WEAK acid as it has a pH close to 5.

What is the pH of a solution with [OH-] = 5.8 x 10-10 M? Select one: A. 5.80 B. 10.58 C. 4.76 D. 9.24

Answer» We are given that -

[OH⁻] = 5.8 * 10⁻¹⁰ M

=> pH of this solution.

=> pOH = -log₁₀[5.8 * 10⁻¹⁰ ] ( log₁₀[5.8 * 10⁻¹⁰ ] = -9.236 )

=> pOH = -1 * -9.236

=> pOH = 9.236 (approx.)

=> pH + pOH = 14

=> pH + 9.236 = 14

=> pH = 14 - 9.236

=> pH = 4.764

=> pH = 4.76 (rounded off to the nearest HUNDREDTHS)

=> Thus, the correct answer is (C) 4.76 .

=> This compound has a pH below 7, so it is acidic.

=> It can be considered to be a WEAK acid as it has a pH close to 5.