2012年2月3日星期五

What color would the pH be of NaOH when purple cabbage juice is added to it?

Blue.



The juice of RED cabbage can be used as a home-made pH indicator, turning red in acid and blue in basic solutions
What color would the pH be of NaOH when purple cabbage juice is added to it?
blue for base...and it doesnt change much when an acid is added
Loosing eyelid crease.
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