how do make an indicator from tea
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Tea indicator
Make some VERY strong tea and allow to cool.
Turmeric indicator
Mix 1 teaspoon turmeric in 1/4 cup rubbing alcohol (this is quite nasty stuff so be careful and get some help if you're not confident). The alcohol will separate when you add the indicator to whatever you're testing so pour in slowly down the side of the glass.
Blueberry jam indicator
Mix a tablespoon of jam with 1/4 cup of water (more or less water depending on how well your jam mixes in). Strain to get rid of the bits.
Grape juice/ Cranberry juice indicator
Just use the juice as it comes out the carton.
Using the indicators:
Add a bit of indicator to the substance you want to test. (You may need to dilute the substance in some water if its thick or dark in color!). Record the color change and try to decide whether it is acidic or basic. You can use the indicator in solution or soak some blotting or filter paper in the liquid and then allow to dry to make pH strips (don't do this with the turmeric indicator though). You can use this to test stuff by dipping it in to the substance - you can even measure the pH of your own mouth by putting it on your tongue! You can also write invisible messages with vinegar or lemon juice, allow them to dry and reveal them by spraying lightly with indicator solution
Make some VERY strong tea and allow to cool.
Turmeric indicator
Mix 1 teaspoon turmeric in 1/4 cup rubbing alcohol (this is quite nasty stuff so be careful and get some help if you're not confident). The alcohol will separate when you add the indicator to whatever you're testing so pour in slowly down the side of the glass.
Blueberry jam indicator
Mix a tablespoon of jam with 1/4 cup of water (more or less water depending on how well your jam mixes in). Strain to get rid of the bits.
Grape juice/ Cranberry juice indicator
Just use the juice as it comes out the carton.
Using the indicators:
Add a bit of indicator to the substance you want to test. (You may need to dilute the substance in some water if its thick or dark in color!). Record the color change and try to decide whether it is acidic or basic. You can use the indicator in solution or soak some blotting or filter paper in the liquid and then allow to dry to make pH strips (don't do this with the turmeric indicator though). You can use this to test stuff by dipping it in to the substance - you can even measure the pH of your own mouth by putting it on your tongue! You can also write invisible messages with vinegar or lemon juice, allow them to dry and reveal them by spraying lightly with indicator solution
Answered by
1
Hey dear,
● Making pH indicator from tea -
- Make some black tea by adding tea bag in hot water & heating it for 10 min.
- Now put some sample solution in the tea.
- Colour of tea changes wrt pH of the solution sample.
- This is how we can use tea as pH indicator.
Hope this helped you.
Keep asking..
● Making pH indicator from tea -
- Make some black tea by adding tea bag in hot water & heating it for 10 min.
- Now put some sample solution in the tea.
- Colour of tea changes wrt pH of the solution sample.
- This is how we can use tea as pH indicator.
Hope this helped you.
Keep asking..
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