A solution has a hydroxide ion concentration of $1 imes 10^{-4}$ mol dm⁻³ at 25°C. What is the pH of the solution?

Question

A solution has a hydroxide ion concentration of $1 	imes 10^{-4}$ mol dm⁻³ at 25°C. What is the pH of the solution?

Accepted Answer

10. If [OH⁻] = 1 × 10⁻⁴ mol dm⁻³, then pOH = 4. Since pH + pOH = 14 at 25°C, pH = 14 − 4 = 10. The solution is basic because the pH is greater than 7.

Answer

A) 4

Answer

B) 8

Answer

C) 10

Answer

D) 12

A solution has a hydroxide ion concentration of $1 \times 10^{-4}$ mol dm⁻³ at 25°C. What is the pH of the solution?

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