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Calculate the pH of a solution that is 0.239 M in nitrous acid (HNO2) and 1.009 M in potassium nitrite (KNO2). The Ka value of nitrous acid is 4.50 × 10-4. Please give the answer to 2 decimal places. | Bereken die pH van 'n oplossing wat 0.239 M salpeterigsuur (HNO2) en 1.009 M kaliumnitriet (KNO2) bevat. Die Ka waarde van salpeterigsuur is 4.50 × 10-4. Gee asseblief die antwoord tot 2 desimale plekke. |
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