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  #11  
Old 01-25-2006, 01:06 PM
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I suppose they are talking about Lugol's idione solution. Correct me if you meant the compound I2. You should have it at your school.
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  #12  
Old 03-11-2006, 07:29 PM
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does it have to be lugol's iodine? can it just be the ones that kills germs in cuts, burns, or whatever>?
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  #13  
Old 03-12-2006, 12:26 PM
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sure! iodine is iodine, no matter what type it is!!
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  #14  
Old 03-13-2006, 11:50 AM
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Quote:
Originally Posted by swtemptazn
does it have to be lugol's iodine? can it just be the ones that kills germs in cuts, burns, or whatever>?
You're talking about hydrogen peroxide H2O2 or alcohol. I don't know if they work. They might work in killing the bacteria, but it doesn't make the bacteria/cell easier to see.
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Old 03-27-2006, 07:25 PM
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FOR My science, my question is going to be:

In a grapefruit, kiwi, lemon, an orange, papaya, tomato, strawberries, and a pineapple, which fruit has the most Vitamin C?

But I' am looking for way to advance a little so it doesn't have to be like the one that has been posted?

Anyone got ideas?
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  #16  
Old 03-28-2006, 01:15 PM
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Quote:
Originally Posted by swtemptazn
FOR My science, my question is going to be:

In a grapefruit, kiwi, lemon, an orange, papaya, tomato, strawberries, and a pineapple, which fruit has the most Vitamin C?

But I' am looking for way to advance a little so it doesn't have to be like the one that has been posted?

Anyone got ideas?
Remember, when doing this project, not to use a whole orange, or a whole kiwi, but make sure that the pieces of fruit you are using weigh the same. (B/c a kiwi is definitely smaller than a papaya, so it could turn out that you think there's more Vita C in the papaya, when there's a higher concentration in the kiwi.

Also, it'll be interesting if you check, over time, what is the change in the amount of VitC. Put some fruit on the counter for a few days, and each day, check how much vit C is left.

Good luck!
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Old 04-08-2006, 11:35 AM
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I'm doing this project for my science fair this year and my teacher was saying that i need to find a way to find out the quantative amount of vitamin c in my various fruits. Does anyone have an idea how i could do so?

Thanks ^^
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Old 04-12-2006, 12:16 PM
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did u read what i wrote here??

follow the link...

[url]http://classroom.all-science-fair-projects.com/forum/showthread.php?t=418[/url]



2 help!!!
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Old 04-12-2006, 12:38 PM
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ty for replying But in your experiment it doesn't show the actual content of vitamine c. for example, 10 mg of vitamin C / 100 ml of orange juice. I asked if i could do the placing like you did in your experiment but my teacher suggested that it would be better if i found the quantative values. So, my question is if you know how i could find those or if there are any suggestions.
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  #20  
Old 04-12-2006, 06:45 PM
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well, if you have 100mL of orange juice and 20% is Vitamin C, then there'll be 20mL of vitamin C... Or am I wrong?
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