pH measurement of oxide solutions
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pH measurement of oxide solutions
pHs of oxide solutions. Aqueous solutions of the oxides of some elements with universal indicator (UI) added to show their pH (acidity). The element forming each oxide is labelled. The oxide of sulphur produces sulphuric acid, which has the lowest pH (strongest acidity). UI changes colour according to the pH, from red (most acidic) through yellow (mildly acidic) to blue (slightly alkaline) to purple (strongly alkaline). Sulphur oxide forms sulphuric acid in water, which is highly acidic. Sodium oxide forms sodium hydroxide (a strong alakai). Oxide pH increases from left to right across the periodic table
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Media ID 6294885
© ANDREW LAMBERT PHOTOGRAPHY/SCIENCE PHOTO LIBRARY
Acidity Carbon Chemicals Comparing Comparison Inorganic Iron Magnesium Oxide Oxides Phosphorus Sodium Solution Solutions Sulphur Aqueous Laboratory
EDITORS COMMENTS
This print showcases the pH measurement of oxide solutions, providing a visual representation of their acidity levels. Aqueous solutions containing various oxides of elements are depicted, with universal indicator (UI) added to reveal their respective pH values. Each oxide is clearly labeled, allowing for easy comparison and analysis. The image highlights the striking color changes exhibited by UI based on pH levels. Starting from red (indicating high acidity), the colors transition through yellow (mildly acidic), blue (slightly alkaline), and finally purple (strongly alkaline). Notably, sulphuric acid derived from sulphur oxide displays the lowest pH value, signifying its exceptional acidity. Furthermore, this photograph demonstrates how sodium oxide forms sodium hydroxide – a potent alkali solution. As we move across the periodic table from left to right, there is a noticeable increase in oxide pH values. With its focus on laboratory chemistry and chemical reactions, this print offers valuable insights into inorganic compounds such as carbon dioxide and magnesium oxide when mixed with water. The presence of phosphorus also adds depth to our understanding of these chemical processes. In summary, Science Photo Library presents an informative snapshot that captures the diverse range of oxides' effects on aqueous solutions' acidity or alkalinity. This visually stunning image serves as a reminder of the intricate world hidden within chemicals and their interactions with one another.
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