The Importance Of Acids And Bases

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Acids and Bases

All substances have properties like color, smell, density, etc. (Carboni…). But substances also have a property of being either acidic or basic. A substance is determined to be an acid or a base based on its pH level. Both acids and bases undergo a process known as dissociation. Dissociation is the freeing of ions. Substances that free hydroxide ions are bases, and substances that free hydrogen ions are acids, but only when they are mixed with water. Acids are rich and plentiful in hydrogen ions. However, bases are low in hydrogen ions. Sometimes, there are strong acids that have a higher concentration of ions than other acidic substances, and the same goes for bases. At other times though, there are acids and bases
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When dealing with pH, a pH indicator indicates the pH level of a substance. PH indicators occur in two different forms. One is as a paper strip that is dipped into a solution. Another is a liquid that is added and mixed differently into a solution. With this red cabbage experiment, we will be using a liquid pH indicator because we will be mixing the red cabbage juice with water and other liquid substances. What indicates the pH level is the appearance of the strip after taking it out of the solution, or when the liquid indicator is added to the solution. The color will change and this is how you recognize the level of pH (pH Indicators…). PH is everywhere, in all aspects of the world. PH is the acidic level of something, so it is in all places from your body to soil to water to other natural substances. In your body pH can be measured of your blood, stomach acid, urine, and saliva. It is actually healthy and normal for your blood to be slightly alkaline or acidic because this allows your body to heal itself (Monitoring…). In soil, farmers indicate the pH level by the plants and flowers. Sometimes, the color of the petals on flowers and the color of the meat of the fruit changes, and this is a completely natural way for a farmer to tell if the pH level varies. Natural fruit juices can be tested as well. Most people know that lemon juice is acidic, but you can know for sure by testing the juice …show more content…
At the ARS Beltsville Human Nutrition Research Center (BHNRC) there was a study dealing with the anthocyanin in red cabbage and comparing it to other fruits and vegetables with these pigments. In this study, red cabbage was found to have 36 different types of anthocyanins. The scientists behind the study even discovered eight new anthocyanins that were not known to be in red cabbage (Red Cabbage Study…). There are four groups within anthocyanin and they are hydroxyl, carboxyl, methoxyl, and glycolyl. In red cabbage, glycolyl groups are mostly found because it is sugar based. The reason why red cabbage is used in an experiment dealing with pH indicating is due to the fat that it is more soluble in water than most other substances. Anthocyanins are polar molecules, which makes the process of separating and extracting the anthocyanins much easier. Molecules that are non polar are more difficult to separate its particles. There is a procedure called a batch procedure where scientists use it to extract natural pigments from natural sources like fruits and vegetables. Red cabbage is a great source of natural pigments because of its high hydrogen ion concentration causing it to have its red-purple color. This and the polar molecule anthocyanin are reasons why red cabbage is faster and more efficient for extraction procedures

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