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Search: Posts Made By: dreamerofeternity
Forum: Food Science (Grades 6-8) 04-16-2006, 03:13 PM
Replies: 6
Views: 11,089
Posted By dreamerofeternity
phenolphthalein is a acid-base indicator. In the...

phenolphthalein is a acid-base indicator. In the presence of a base, it is purple/pink (more like magenta.) When it's neutral or acid, it is colorless.

So it is useful in titrations when you want...
Forum: Food Science (Grades 6-8) 04-05-2006, 08:15 AM
Replies: 6
Views: 11,089
Posted By dreamerofeternity
How about this: Does the strength of an acid or...

How about this: Does the strength of an acid or base affect the ability of it to clean stains? So choose a type of stain, be it blood, coffee, ketchup, or all. Then, for each type of stain, use a...
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