it is a greenish color.
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 product equation for the reaction between HCl (hydrochloric acid) and BTB (bromothymol blue) results in a color change from blue to yellow. The equation is: HCl + BTB (blue) → H+ (colorless) + Cl- + BTB (yellow)
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.
It turns yellow after we exhaled into the btb solution..:)
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.
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.
blue
When you mix lemon juice with bromothymol blue (BTB) solution, the color will change from blue to yellow. This is because the acidity of the lemon juice causes the BTB indicator to shift to its yellow color.
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.
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.
The product equation for the reaction between HCl (hydrochloric acid) and BTB (bromothymol blue) results in a color change from blue to yellow. The equation is: HCl + BTB (blue) → H+ (colorless) + Cl- + BTB (yellow)
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.
It turns yellow after we exhaled into the btb solution..:)
Carbon dioxide gas will cause bromothymol blue (BTB) to change from blue to yellow. This is due to the acidic nature of carbon dioxide when dissolved in water, which causes the pH to decrease and the BTB indicator to change color.
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.
When air is pumped into a BTB (Bromothymol blue) solution, carbon dioxide in the air forms carbonic acid when it dissolves in the water, lowering the pH and causing the solution to change color. BTB is an indicator that changes color in response to pH changes, shifting from blue in a basic solution to yellow in an acidic solution.
Bromothymol blue (BTB) stays blue in basic solutions due to its blue form being the predominant color at high pH values. The blue form of BTB indicates that the solution is basic, as it absorbs light in the visible spectrum that corresponds to blue.