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What was the role of the water test tube in each phase?
In the phase where the bromothymol blue solution was added and the lamp was switched on, the water test tube served as a control, helping to compare the change in color of the bromothymol blue solution with that of pure water when exposed to light. In the phase where the elodea was added and the lamp was switched on, the water test tube acted as a comparison point to show any changes in the color of the bromothymol blue solution due to the presence of the plant.
What happens when bromothymol blue is put in a neutral substance?
When bromothymol blue is placed in a neutral substance, such as pure water with a pH around 7, it remains a greenish color. This is because bromothymol blue is a pH indicator that changes color based on acidity or basicity; it appears yellow in acidic solutions (pH < 6) and blue in basic solutions (pH > 7). Thus, in neutral conditions, it does not undergo any significant color change.
What color will it be if you have a high pH?
It depends on the substance. For instance, water will see no color change.
How can Bromothymol Blue pH measure your rate of cellular respiration?
Bromothymol Blue is a pH indicator that changes color in response to acidity levels. During cellular respiration, carbon dioxide is produced, which reacts with water to form carbonic acid, lowering the pH of the solution. By measuring the color change in Bromothymol Blue, you can indirectly assess the rate of cellular respiration: a faster rate of respiration will result in a quicker color change due to increased production of carbon dioxide. Thus, monitoring the color shift provides a visual representation of the cellular respiration rate.
What does photosynthesis have to do with the use of Bromothymol Blue?
Bromothymol blue is an indicator which changes colour in the presence of an acid. When carbon dioxide mixes with water it produces carbonic acid (soda water). A pretty common experiment involves putting a respiring organism in water mixed with bromothymol blue, the water should turn yellow as the organism takes in oxygen and produces carbon dioxide. The indicator can be changed back to its original blue colour by removing the carbon dioxide from the water, i.e. putting in a plant to run photosynthesis - drawing out the carbon dioxide to produce oxygen.
What was the role of the water test tube in each phase?
In the phase where the bromothymol blue solution was added and the lamp was switched on, the water test tube served as a control, helping to compare the change in color of the bromothymol blue solution with that of pure water when exposed to light. In the phase where the elodea was added and the lamp was switched on, the water test tube acted as a comparison point to show any changes in the color of the bromothymol blue solution due to the presence of the plant.
What happens when you mix TAP WATERand Bromothymol blue?
When mixed with tap water, bromothymol blue will change color depending on the acidity of the water. In acidic conditions, it will turn yellow; in neutral conditions, it will be green; and in basic conditions, it will be blue. This color change is due to bromothymol blue's pH-sensitive properties.
What color does the bromothymol blue solution turn in the presence of carbonated water?
Yellow.
What will be the colour of bromothymol blue in a solution of sodium chloride in water?
Sodium Chloride solution has a pH of 7 & the Indicator color is green. Bromothymol blue indicator reflects a pH range of 3.5-9.5
Bromothyl blue and water were bubbled explain why the solution colour changed?
The solution's color changed because bromothymol blue is a pH indicator that changes color based on the acidity or alkalinity of the solution it is in. When bubbled with water, carbon dioxide from the air dissolves in the water, forming carbonic acid, which lowers the pH of the solution, causing the bromothymol blue to change color.
Is bromothymol a base or acid?
The water solution of bromothymol blue is a little acidic.
What happens over time if you put a plant bromothymol blue?
Bromothymol blue is a pH indicator that changes color based on acidity or alkalinity. When added to a plant, it can help visualize changes in pH in the surrounding soil or water. Over time, if the plant undergoes photosynthesis, it will take in carbon dioxide and release oxygen, which can affect the pH and thus the color of bromothymol blue. If the environment becomes more alkaline due to oxygen production, the solution may change from yellow to blue, indicating a shift in pH.
What color does water turns when a substance is added to the indicator?
It depends on the indicator used. For example, adding phenolphthalein to water turns it pink in basic conditions and colorless in acidic conditions, while adding bromothymol blue turns water blue in basic conditions and yellow in acidic conditions.
What happens when salt is added to water to change its color?
When salt is added to water to change its color, the salt dissolves in the water and does not directly affect the color of the water.
What colour is bromothymol blue in water?
Bromothymol blue is blue in neutral or basic solutions, and yellow in acidic solutions.
What happens when you mix bromothymol blue and calcium chloride?
Well, honey, when you mix bromothymol blue and calcium chloride, you get a chemical reaction that forms a precipitate. The bromothymol blue changes color from blue to yellow, thanks to the acidic environment created by the calcium chloride. So, in short, you get a colorful chemistry party that's sure to impress your inner science geek.
Carbon dioxide and bromothymol blue?
Carbon dioxide can react with water to form carbonic acid, which can lower the pH of a solution. Bromothymol blue is a pH indicator that changes color from blue to yellow in acidic solutions. When carbon dioxide is bubbled through water containing bromothymol blue, the solution will turn yellow due to the decrease in pH caused by the formation of carbonic acid.
