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is [OH−] = 4×10−2 M acidic, neutral or basic

Sagot :

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Answer:

[OH-] = 4 x 10^-2 M is basic.

Explanation:

* pH is a measure of hydrogen ion concentration ([H+]) in a solution.

* pOH is a measure of hydroxide ion concentration ([OH-]) in a solution.

* Neutral solutions have equal concentrations of H+ and OH-.

* Acidic solutions have a higher concentration of H+ ions than OH- ions.

* Basic solutions have a higher concentration of OH- ions than H+ ions.

Since [OH-] is 4 x 10^-2 M, which is significantly greater than the concentration of OH- in a neutral solution (1 x 10^-7 M), the solution is basic.

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