green or blue
Citric acid is generally colorless in universal indicator. It is a weak acid, so it does not exhibit a strong color change in the indicator solution.
In a strong alkali, universal indicator typically turns dark blue or purple. This color change indicates a high pH level, usually around 12-14.
Universal indicator turns dark blue or purple in a strong alkaline solution.
Universal indicator will turn dark blue or purple when mixed with a strong alkali.
It would make it a blue color, meaning alkaline.
Citric acid is generally colorless in universal indicator. It is a weak acid, so it does not exhibit a strong color change in the indicator solution.
Universal indicator would be dark blue or purple in a strong alkali.
In a strong alkali, universal indicator typically turns dark blue or purple. This color change indicates a high pH level, usually around 12-14.
Universal indicator turns dark blue or purple in a strong alkaline solution.
Universal indicator will turn dark blue or purple when mixed with a strong alkali.
It would make it a blue color, meaning alkaline.
Sodium hydroxide turns Universal Indicator solution dark purple, indicating it is a strong base with a high pH level.
Sodium chloride is a neutral substance and will not exhibit a specific color in a universal indicator. Universal indicators change color based on the pH of a solution, not the presence of specific compounds like sodium chloride.
Because Coffee is a dark colour and if your testing it with universal indicator paper the paper might stain from the strong coffee colour and not be entirely accurate. I have never tried this personally its just as assumption.
Bleach typically turns a greenish-yellow color when tested with universal indicator due to its high pH level. This indicates that bleach is a strong base.
It would turn red in strong acid, orange/yellow in a weak acid, green in a neutral solution, blue in a weak base and purple in a strong base
Universal indicator turns deep blue or violet when mixed with a strong alkali.