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Question by Akilesh – Internet Undertaker: Give the pH of the following substances. What color does pH paper turn on testing with these substances?
1) Lemon juice
2) Tomato juice
3) Apple juice
4) Washing soda solution
I need the exact color.
Best answer:
Answer by Diane B
lemon juice 2.3
Tomato juice 4.2
apple juice 2.9-3.3
washing soda solution
What do you think? Answer below!
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It has been ages since I took this, but out of memory, those are acids so they turn litmus paper red (or pink). The washing soda would turn litmus paper blue (it is basic).
It has been ages ago though, so my memory could be wrong.