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A 7. 12×10−4mol sample of koh is dissolved in water to make up 50. 0ml of solution. what is the ph of the solution at 25. 0∘c? round the answer to three significant figures

Sagot :

The pH of the solution is 12.2.

Molarity (kon) = No. of moles of FoH x 1000

Mckor, 7:12 × 10-4 moles x Looo 50.0 mL.

Volume of solution (m²), McKong = 1.424x102M, [on] =1.424×102M POH = -log [on] pOH =

-log [1.424x102] pon = 1.85.

pH + pOH = 14

PH = 14-pOH = 14-1.85 pH = 12.15.)

12.2.

pH is a measure of the concentration of hydrogen ions in water. Specifically, pH is the negative logarithm of the hydrogen ion (H+) concentration (mol/L) in an aqueous solution. pH = -log10(H+) This term indicates the basicity or acidity of a solution from 0 to 14 where pH 7 is neutral.

Learn more about pH here https://brainly.com/question/24595796

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