Lampunaya Leaf Extract as an Acid Base Indicator
Chapter I
Background of the Study Chemical compounds can be classified as acidic, basic, or neutral substances based on several conditions. One factor considered is the color reaction which can be observed through the use of indicators. An indicator is a substance that changes color, depending on whether it is placed in an acidic solution or basic solution. One indicator that almost everyone associates with acids and bases is the litmus paper, which has the ability to change the color in response to an acid or a base. Phenolphthalein is another common indicator use by beginners in chemistry because its color change is very obvious, making it easy to use. There are many other indicators that change color at different pH levels, and so are useful for different purposes. Many pigments found in nature can be quite effectively used as acid-base indicators. The purple eggplant peel, the dyes in the blueberries and the purple camote peel contain anthocyanins. These plant pigments produce definite colors in solutions of different acidity or basicity. Anthocyanins are also water soluble and have colors that are dependent upon the pH of the reacting solution. In our study, the researchers used a lampunaya leaf that also contains anthocyanins With the knowledge of this, we decided to come up with a study about lampunaya leaf extract as an acid-base indicator. There are three reasons why we conducted this study: first, we want to discover new things. We would like o know if the lampunaya leaf extract would be an effective acid-base indicator and as far as we have known there are only a few researches about this topic. Second, we would like to add further knowledge about the topic because our study may be useful to the future generation and it may help them to add more information to what we have gathered from our research. Lastly, to save money because if the school runs out of money, they can use the lampunaya leaf extract as an acid-base indicator and there’s no need for
Background of the Study Chemical compounds can be classified as acidic, basic, or neutral substances based on several conditions. One factor considered is the color reaction which can be observed through the use of indicators. An indicator is a substance that changes color, depending on whether it is placed in an acidic solution or basic solution. One indicator that almost everyone associates with acids and bases is the litmus paper, which has the ability to change the color in response to an acid or a base. Phenolphthalein is another common indicator use by beginners in chemistry because its color change is very obvious, making it easy to use. There are many other indicators that change color at different pH levels, and so are useful for different purposes. Many pigments found in nature can be quite effectively used as acid-base indicators. The purple eggplant peel, the dyes in the blueberries and the purple camote peel contain anthocyanins. These plant pigments produce definite colors in solutions of different acidity or basicity. Anthocyanins are also water soluble and have colors that are dependent upon the pH of the reacting solution. In our study, the researchers used a lampunaya leaf that also contains anthocyanins With the knowledge of this, we decided to come up with a study about lampunaya leaf extract as an acid-base indicator. There are three reasons why we conducted this study: first, we want to discover new things. We would like o know if the lampunaya leaf extract would be an effective acid-base indicator and as far as we have known there are only a few researches about this topic. Second, we would like to add further knowledge about the topic because our study may be useful to the future generation and it may help them to add more information to what we have gathered from our research. Lastly, to save money because if the school runs out of money, they can use the lampunaya leaf extract as an acid-base indicator and there’s no need for