A procedural change would be required so that the student includes an indicator, like phenolphthalein, in the tomato juice sample, which changes color at the endpoint of the titration. This indicator helps visually identify when all the acid in the tomato juice has been neutralized by the NaOH solution, ensuring accurate determination of the juice's acidity.
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.
Bougainvillea juice will turn from its original color to pink when mixed with dove solution, due to the presence of anthocyanin pigments in the bougainvillea juice reacting with the alkaline nature of the dove solution.
The color remain red because vinegar is an acidic solution.
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Cabbage contain Anthocyanins called Cyanidin. These are responsible for changing color with pH. Changing the pH affects the shape of the molecule which, in turn, changes its wavelength absorption.
it goes red i think not sure but i think
washing up liquid, Orange Juice, Grape Juice
Red in acidic solution
add lemon juice
Blue litmus paper turns red when grape juice is added, indicating that the solution is acidic.
washing up liquid, Orange Juice, Grape Juice