0
Dip a piece of coffee filter in red cabbage juice and let it dry. Untested, but should work.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How are lichens used to make litmus paper?
The indicators in litmus are extracted from lichens; the color of litmus depends on the pH of the solution.
How is litmus solution is prepared?
Litmus solution is a mixture of dyes dissolved in water.
Why is it important to use blue and red litmus paper to determine pH?
Because if you only use red litmus paper and the solution you tested kept the paper red, you would think that the solution would also make the blue litmus paper turn red too. But what if the solution was neutral? Then the blue litmus paper would stayblue instead of turn red. Thats why you need to use both blue and red litmus paper.
What do you observe when red litmus is added to a solution of sodium sulphate?
Sodium sulfate solution is neutral; the red litmus is purple.
Do not alter the color of litmus paper?
In a neutral solution the litmus paper is purple.
How are lichens used to make litmus paper?
The indicators in litmus are extracted from lichens; the color of litmus depends on the pH of the solution.
Does vinegar make litmus paper turn red?
Litmus paper turns red if the solution is acidic and blue if the solution is basic. Vinegar is an acidic solution (due to acetic acid), and will turn the litmus paper red.
What colour of sugar solution on litmus paper?
Litmus does not change color in sugar solution.
What can litmus paper tell you about a solution?
Litmus will allow you to tell if a solution is a acid or a base.
If litmus is blue in a solution what is the pH of the solution?
Red litmus turn to blue in basic solutions.
In a basic solution what color does litmus paper turn?
Litmus paper turns blue in basic solution.
How is litmus solution is prepared?
Litmus solution is a mixture of dyes dissolved in water.
How do you observe the changing colour of litmus paper?
Dip the litmus paper into the solution you are testing. Hold it up in the air, holding the dry bit. Look at the bit you dipped. If the solution was an acid, red litmus will stay red, blue litmus will turn red. If the solution was an alkali, red litmus will turn blue, blue litmus will stay red. If the solution was neutral, red litmus will stay red, blue litmus will stay blue.
Why do you need to test solutions with Blue litmus paper and red litmus paper?
So you can tell if the solution is an acid or a base
Does detergent solution effect on red litmus papper?
detergent solution has an effect on red litmus paper because detergent solution is a base and it changes the color of red litmus(indicator) to blue when in contact with it.
Why is it important to use blue and red litmus paper to determine pH?
Because if you only use red litmus paper and the solution you tested kept the paper red, you would think that the solution would also make the blue litmus paper turn red too. But what if the solution was neutral? Then the blue litmus paper would stayblue instead of turn red. Thats why you need to use both blue and red litmus paper.
What do you observe when red litmus is added to a solution of sodium sulphate?
Sodium sulfate solution is neutral; the red litmus is purple.
