When we resperate, we release carbon dioxide. Plants take that in to make oxygen. BTB can not do anything with the carbon dioxide. Only if you add a plant in the container with the BTB, you can make it it's blue color again. A fun experiment is to add soda, like coke, to BTB and see if it changes.
It turns yellow after we exhaled into the btb solution..:)
BTB stains hands and clothes. As carbon dioxide is absorbed from the breath into the solution, forming carbonic acid, the solution changes color from green to yellow.
The green color in the beaker is likely due to the presence of bromothymol blue (BTB), a pH indicator that turns yellow in acidic conditions and blue in basic conditions. The green color could indicate a neutral pH, where the yellow and blue colors are mixed.
Adding NaOH (sodium hydroxide) to BTB (bromothymol blue) will turn the solution blue, as the color of BTB changes depending on the pH of the solution. When NaOH is added, it increases the pH, causing BTB to shift from yellow to blue.
Bromothymol blue (BTB) turns yellow in the presence of an acid and blue in the presence of a base.
Soda effects BTB when you add it to the BTB. Soda has carbon dioxide in it, which makes it foamy. BTB is used as an indicator of chemicals with a weak acid and base. When you add the carbon dioxide it will change into a green like color.
It turns yellow after we exhaled into the btb solution..:)
BTB changes color because of the CO2 in chemicals. When we blow into the BTB with a straw, the water vapor fuses with the BTB and change color. Our breath has some acidic characteristics. The BTB changes from blue, its original color to green-yellow, that's proof that what we breath has acidic molecules.
BTB stains hands and clothes. As carbon dioxide is absorbed from the breath into the solution, forming carbonic acid, the solution changes color from green to yellow.
BTB (bromothymol blue) is a pH indicator that turns yellow in acidic conditions (pH < 6) and blue in basic conditions (pH > 7.6). Rubbing alcohol is typically neutral in pH (around 7), so when mixed with BTB, the color would likely remain green due to the pH of rubbing alcohol not significantly affecting the indicator.
Adding carbon dioxide to bromothymol blue (BTB) solution causes a color change because it forms carbonic acid, which lowers the pH of the solution. BTB changes color in response to pH changes, shifting from blue in a basic solution to yellow in an acidic solution. The increased acidity due to the carbon dioxide causes the solution to turn yellow.
The green color in the beaker is likely due to the presence of bromothymol blue (BTB), a pH indicator that turns yellow in acidic conditions and blue in basic conditions. The green color could indicate a neutral pH, where the yellow and blue colors are mixed.
Adding NaOH (sodium hydroxide) to BTB (bromothymol blue) will turn the solution blue, as the color of BTB changes depending on the pH of the solution. When NaOH is added, it increases the pH, causing BTB to shift from yellow to blue.
Bromothymol blue (BTB) turns yellow in the presence of an acid and blue in the presence of a base.
The blue BTB solution turning green in the presence of elodea indicates that photosynthesis is taking place. During photosynthesis, elodea utilizes carbon dioxide and water to produce glucose and oxygen, leading to a change in the color of the indicator solution from blue to green.
The BTB stands for: Bromothymol Blue Mostly used for testing the water if there is acid or not.
The combination of BTB (Bromothymol Blue) and water demonstrates a pH indicator experiment. BTB changes color in response to changes in pH levels, turning yellow in acidic conditions (pH less than 7), green at neutral pH (around 7), and blue in basic conditions (pH greater than 7).