The concentration of hydroxide ion in a water sample is found to be 2.

1.	The concentration of hydroxide ion in a water sample is found to be 2.5 x 10-6 M. Identify the nature of the solution.
Answer» The concentration of OH ion in a water sample is found to be 2.5 x 10 M pOH = – log₁₀ [OH^-] pOH = – 1og₁₀ [2.5 x 10^-6] = – log₁₀ [2.5] – log₁₀ [10^-6] = – 0.3979 – (– 6) = – 0.3979 + 6 pOH = 5.6 We know that, pH + pOH = 14 pH + 5.6 = 14 pH = 14 – 5.6 pH = 8.4 pH = 8.4, shows the nature of the solution is basic.

The concentration of hydroxide ion in a water sample is found to be 2.5 x 10-6 M. Identify the nature of the solution.

Answer»

The concentration of OH ion in a water sample is found to be 2.5 x 10 M

pOH = – log₁₀ [OH^-]

pOH = – 1og₁₀ [2.5 x 10^-6]

= – log₁₀ [2.5] – log₁₀ [10^-6]

= – 0.3979 – (– 6)

= – 0.3979 + 6

pOH = 5.6

We know that,

pH + pOH = 14

pH + 5.6 = 14

pH = 14 – 5.6

pH = 8.4

pH = 8.4, shows the nature of the solution is basic.

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The concentration of hydroxide ion in a water sample is found to be 2.5 x 10-6 M. Identify the nature of the solution.

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