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How can you use toothpaste to show that red cabbage is an indicator?
Wiki User
∙ 10y ago
If you blend red cabbage with water (the best ratio for this is 1:2, one cabbage leaf for two cups of water) and then add toothpaste the mixture will turn green. This indicates that toothpaste is a base. If you add vinegar instead the solution will turn red, indicating an acid.
Wiki User
∙ 10y ago
Wiki User
∙ 12y agoThe related link gives details. Basically what you do is to finely chop red cabbage to get 2 cups of chopped cabbage. Add boiling water to cover, wait 10 minutes and filter the liquid with filter paper, such as used for coffee. You will get a reddish-purple liquid which will turn red in acids and greenish-yellow in a base. Neutral is purple. The link names some household items that you may want to test.
Wiki User
∙ 12y agoRed cabbage, can be used as an indicator, because it is clasified as a chemical substance. Red cabbage is a coloured indicator that can change colour when a household substance is added.
Wiki User
∙ 10y agoadd toothpaste to red cabbage juice and see if it changes colour
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What does red cabbage indicator smell like?
The red-cabbage indicator smells like cabbage, nothing else...
Why is the universal indicator more useful than the red cabbage?
The universal indicator is better than the red cabbage indicator because the universal indicator has a wider range of pH that it can explain why a substance is acidic or basic. The red cabbage indicator only tests the substance if it is an acid or a base. Also, the universal indicators are made carefully and it is manufactured in a precise manner so the results are very reliable. Red cabbage indicators will vary in concentration which could cause errors to occur in determining the pH of a substance.
What makes a good pH indicator?
Red Cabbage extract
What color will lemonade turn into when red cabbage indicator is in it and why?
the cup of lemonade will turn a bright red color because it is an acid
What are examples of synthetic pH indicators?
Red Cabbage Juice can be used as an easy natural indicator. Bromothymol Blue is a common chemical pH indicator
What does red cabbage indicator smell like?
The red-cabbage indicator smells like cabbage, nothing else...
Is red cabbage an artificial indicator?
No, it is natural, coming from "red cabbage".
What does red cabbage indicator do that other indicators don't?
Nothing, but red cabbage is a simple pH indicator at home (red in acidic solutions).
What is a good homemade indicator?
Red Cabbage
What vegetable is used to make an indicator?
Red Cabbage and Beetroot can be used but what else?
What is a natural pigment that can act as an indicator?
red cabbage is the natural pigment that can act as an indicator.
What is the name of the method used to separate the cabbage water indicator from the pieces of red cabbage?
Filtration
What is the chemical name of the indicator in red cabbage juice?
anthocyanin
When making red cabbage indicator why do you grind the cabbage rather than stir it?
It is important to release a liquid.
Why is the universal indicator more useful than the red cabbage?
The universal indicator is better than the red cabbage indicator because the universal indicator has a wider range of pH that it can explain why a substance is acidic or basic. The red cabbage indicator only tests the substance if it is an acid or a base. Also, the universal indicators are made carefully and it is manufactured in a precise manner so the results are very reliable. Red cabbage indicators will vary in concentration which could cause errors to occur in determining the pH of a substance.
Is universal indicator better than red cabbage extract?
jhihihi
How does a strawberry act as a natural indicator?
not good. try red cabbage
