A solution of potassium chromate is prepared at ph 772
Chromic acid is a diprotic acid H2CrO4 with Ka1 = 0.18 and Ka2 = 3.2 x 10-7. A solution of potassium chromate is prepared at pH 7.72. Calculate the fraction of the total chromate in this solution that is present as the chromate ion CrO42-.
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Carboxylic acids and phenols can be separated by chemically active extraction if the pH of the aqueous layer is properly chosen. Phenols are sufficiently acidic to be extracted into aqueous sodium hydroxide
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A solution of potassium chromate is prepared at pH 7.72. Calculate the fraction of the total chromate in this solution that is present as the chromate ion CrO42-.
A dentist uses a mirror to examine a tooth. The tooth is 1.01 cm in front of the mirror, and the image is formed 10.9 cm behind the mirror. Determine the mirror's radius of curvature
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