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OpenStudy (anonymous):
Using the terms diffusion, NaOH, and phenolphthalein, explain how the pink color showed how far into the agar cube the solution went.
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OpenStudy (trancenova):
Okay, so three things here: (1) Greater NaOH turns phenolphthalein what colour? (Hint: OH- is a base) (2) How would NaOH move into the cube?
OpenStudy (trancenova):
erm, I mean two..
OpenStudy (anonymous):
1) it turns pink 2) we soaked it for ten minutes making the agar cube looked framed by pink
OpenStudy (trancenova):
Okay, so how would you describe how the pink/phenolphthalein showed the NaOH had "diffusing" into the cube?
OpenStudy (trancenova):
Sigh! I just can't type today! (No had)
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