they have so many colours because they show if it is an acid or an alkali
A universal color wheel may not be appropriate because color perception can vary between cultures and individuals. Different cultures may have different associations and meanings for colors, leading to potential discrepancies in how colors are perceived and categorized. Additionally, individual differences in color perception, such as color blindness, can further complicate the idea of a universal color wheel.
The color of a star is not an indicator of size. While yellow supergiants exist, most yellow stars, such as our sun, fall into the category of yellow dwarf.
When bromothymol blue is exposed to CO2, it undergoes a color change. In the presence of CO2, bromothymol blue turns from blue to yellow due to the formation of carbonic acid. This color change can be used as an indicator for the presence of carbon dioxide.
The color of a star is determined by its temperature, with hotter stars appearing blue and cooler stars appearing red. This is due to the relationship between temperature and the peak wavelength of light emitted, known as Wien's Law. It is easier to observe a star's color than its temperature directly, making color a useful indicator for astronomers.
The universal set is the set of all possible elements under consideration. You can have a universal set of all people, or all bird species, or all numbers or whatever. You can even have a universal set of all people and all bird species and all numbers as one big set.
The color of a universal indicator in a basic solution is usually purple or blue.
Universal indicator changes color in different pH ranges. In the case of ethanol, which is pH-neutral, universal indicator would likely show a green color.
Green is the color that universal indicator turns to when it is neutral.
When universal indicator is put in water soluion of alkalis (base) it indicates significant blue colour.
since water is pretty neutral, the water does not change color but the universal indicator does. The universal indicator changes color as per the quantity of deionized water... But it changes to straw color or pale yellow in 50mL of deionized water.
Ascorbic acid and universal indicator together usually create a light green color.
The universal indicator in saliva typically appears green or blue in color.
A universal indicator changes color in response to the pH of a liquid. Do determine the pH of the liquid, you need to refer to a color chart that tells you which color indicates which pH.
pH of ammonia is around 11-12. Hence when you put it in a universal indicator, you get purple color.
Universal indicator is a mixture of dyes that changes color in response to different pH levels. It is used to determine the approximate pH of a solution by observing the color change of the indicator when added to the solution.
The pH of a solution is measured using universal indicator by adding a few drops of the indicator to the solution and observing the color change. The color of the solution corresponds to the pH level on the universal indicator color scale, which ranges from red (acidic) to purple (neutral) to blue (basic).
A neutral solution will turn universal indicator green.