I had an unknown solution; I noticed it was a sodium salt due to its PH of 7, I then tested for the present of I- by adding 6M HNO3 until acidic, then added 15 drops hexane and 10 drops chlorine water. Then I mixed it very well and found that the hexane layer is violet which confirms the present of I-; which indicates my unknown should be NaI
How would I write the above reactions into balanced chemical equations?
How would I write these reactions into chemical equations?
could be potassium iodide...
I'd take a drop of the solution onto a fire cleaned paper clip %26amp; torch it
sodium burns bright yelowish orange for longer than you care to wait
potassium burns pint to violet to lavendar depending upon the concentration
2I- %26amp; Cl2 --%26gt; 2Cl- %26amp; I2
the hexane is just a cheap, safe organic solvent that dissolves the iodine without a chemical reaction.. in non polar solvents iodine dissolves well %26amp; gives a pink to purple color... so there is no equation to give
the chlorine oxidizes the iodide to iodine, while the chlorine gets reduced to chloride
Reply:First you should collect the data. Maybe ask your teacher, boss, professer, etc..... I hope that answered your question. Good question, bye!
Wednesday, February 15, 2012
Experience with gentian violet?
Has anyone ever used gentian violet for a vaginal yeast infection? How messy of an ordeal was it for you? Does it permanently stain clothing? Are their any tricks or advice that you can give in order to avoid the mess and staining? Also, did it help you with your infection?
Thanks! :)
Experience with gentian violet?
I have never used genitian violet but my mom did years ago and she said that it is quite messy (I've read this somewhere as well). It can permanently stain clothes.
I would recommend that you include a pad or a pantyliner in your panties to try and help minimize some of the mess that comes from using this medication. I would recommend checking with your doctor as well for additional ideas on how to help minimize the mess and staining that occurs with this medication.
My mom said that it was very effective at helping a yeast infection. I've read this as well.
Thanks! :)
Experience with gentian violet?
I have never used genitian violet but my mom did years ago and she said that it is quite messy (I've read this somewhere as well). It can permanently stain clothes.
I would recommend that you include a pad or a pantyliner in your panties to try and help minimize some of the mess that comes from using this medication. I would recommend checking with your doctor as well for additional ideas on how to help minimize the mess and staining that occurs with this medication.
My mom said that it was very effective at helping a yeast infection. I've read this as well.
Where can i buy a Sony NW A-3000 MP3 Player, 20GB in Violet for under £130?
It had to be bought online from a UK company, please help
Where can i buy a Sony NW A-3000 MP3 Player, 20GB in Violet for under ￡130?
you can't
unless you try ebay
Where can i buy a Sony NW A-3000 MP3 Player, 20GB in Violet for under ￡130?
you can't
unless you try ebay
Violet, white and light pink or violet, white and light blue for my wedding?
you like violet and blue
why not try periwinkle?
Violet, white and light pink or violet, white and light blue for my wedding?
I think the violet, white and light pink would be very nice together.
sandals church
why not try periwinkle?
Violet, white and light pink or violet, white and light blue for my wedding?
I think the violet, white and light pink would be very nice together.
sandals church
Newly bought violet (dragon) goby acting strangely?
i recently purchased a violet goby and i noticed it behaving strangely after a few hours in the tank. it stays near the top of the tank in a vertical position, and from what ive read about them they are natural hiders, i also read from one source that this could mean my alkalinity is high, any suggestions on this behavior or adjusting alkalinity? when i tested the water it said it was fine
Newly bought violet (dragon) goby acting strangely?
I don't know how often you do partial water changes, but the dragon gobies are very touchy about water quality. They are also brackish water fish.
If you haven't been doing weekly partial water changes, you need to start now. A 30% weekly change will do wonders for any fish. Partial water changes are the most important thing you can do for any fish tank. When you do water changes, be sure to add salt in the proper amount to keep his water brackish (see below for specific gravity measurements).
It removes the build up of ammonia, nitrites and nitrates that accumulate as fish waste and uneaten food decay in the tank.
Your pH may be fine, but it might also be very different from what he was used to. You should have tested the water in the tank (bag) it came from and determined how far off your water is compared to that. Sometimes you need to take up to 3 or 4 hours to acclimate a fish to your tank water so it doesn't go into pH shock which can be fatal.
By acclimating I mean slowly adding a little bit (maybe a half cup) of tank water to the bag at 15 minute intervals so he doesn't experience a violent change in pH all at once. I have taken as much as 3 hours to acclimate an expensive, delicate fish to my tank water so there is no abrupt change in the pH. As little as .5 difference on the scale can send them into pH shock.
You do know they are brackish water fish, right. They need salt in their water to stay healthy. Brackish water is 1.012 on the specific gravity scale. Fresh is 1.000 and seawater is 1.024-.026. Do you have salt in the water for him?
Here is a site that might help you out some:
http://www.aqualandpetsplus.com/A%20temp...
I suggest an immediate 50% water change with salt added and watch his behaviour for the next few hours. A specific gravity tester can be purchased at most good pet shops that have fish. They are not expensive and are a must to keep your water at the brackish level properly.
Good luck with your dragon, they are very cool fish.
8
Reply:He is probably adjusting to his new habitat. Give him a few more days and he'll be behaving normally.
If you're positive that it's not this, then the nitrite levels could be high. What are your nitrate, nitrite, and chlorine levels on your water test? Saltwater fish don't normally get swim bladder disease, but you could give him the inside of a cooked pea if you're cautious about this.
~ZTM
Reply:belly up FLUSH IT!!! get a goldfish
Reply:New habitat. Give her/him awhile to adjust. They normally will not eat for a few days too!!
Reply:here are some sites about a violet goby
http://www.answers.com/topic/violet-goby...
http://members.tripod.com/~boeing_dude/i...
http://www.aquariacentral.com/species/db...
http://fish.mongabay.com/species/Gobioid...
I hope these sites give you the adequate answeres you need, and I hope also for him that you have a really big tank
Good luck
Newly bought violet (dragon) goby acting strangely?
I don't know how often you do partial water changes, but the dragon gobies are very touchy about water quality. They are also brackish water fish.
If you haven't been doing weekly partial water changes, you need to start now. A 30% weekly change will do wonders for any fish. Partial water changes are the most important thing you can do for any fish tank. When you do water changes, be sure to add salt in the proper amount to keep his water brackish (see below for specific gravity measurements).
It removes the build up of ammonia, nitrites and nitrates that accumulate as fish waste and uneaten food decay in the tank.
Your pH may be fine, but it might also be very different from what he was used to. You should have tested the water in the tank (bag) it came from and determined how far off your water is compared to that. Sometimes you need to take up to 3 or 4 hours to acclimate a fish to your tank water so it doesn't go into pH shock which can be fatal.
By acclimating I mean slowly adding a little bit (maybe a half cup) of tank water to the bag at 15 minute intervals so he doesn't experience a violent change in pH all at once. I have taken as much as 3 hours to acclimate an expensive, delicate fish to my tank water so there is no abrupt change in the pH. As little as .5 difference on the scale can send them into pH shock.
You do know they are brackish water fish, right. They need salt in their water to stay healthy. Brackish water is 1.012 on the specific gravity scale. Fresh is 1.000 and seawater is 1.024-.026. Do you have salt in the water for him?
Here is a site that might help you out some:
http://www.aqualandpetsplus.com/A%20temp...
I suggest an immediate 50% water change with salt added and watch his behaviour for the next few hours. A specific gravity tester can be purchased at most good pet shops that have fish. They are not expensive and are a must to keep your water at the brackish level properly.
Good luck with your dragon, they are very cool fish.
8
Reply:He is probably adjusting to his new habitat. Give him a few more days and he'll be behaving normally.
If you're positive that it's not this, then the nitrite levels could be high. What are your nitrate, nitrite, and chlorine levels on your water test? Saltwater fish don't normally get swim bladder disease, but you could give him the inside of a cooked pea if you're cautious about this.
~ZTM
Reply:belly up FLUSH IT!!! get a goldfish
Reply:New habitat. Give her/him awhile to adjust. They normally will not eat for a few days too!!
Reply:here are some sites about a violet goby
http://www.answers.com/topic/violet-goby...
http://members.tripod.com/~boeing_dude/i...
http://www.aquariacentral.com/species/db...
http://fish.mongabay.com/species/Gobioid...
I hope these sites give you the adequate answeres you need, and I hope also for him that you have a really big tank
Good luck
What effect do you suspect the following would have on your judgement of the Gram reaction of an organism?
Using an old Gram's Crystal Violet preparation containing crystalized dye.
Increasing the length of time for counterstaining.
Destaining with ethanol for one minute.
Susbstituting aqueous crystal viloet for Grams' Crystal Violet.
What effect do you suspect the following would have on your judgement of the Gram reaction of an organism?
using an old gram stain would create precipitate on your slide. if you are not well trained in reading gram stains, you might mistake them as gram positive organisms.
increasing the length of counterstaining would make the organisms pink or falsely gram neg.
destaining for one minute is too much. you would overdecolorize the bacteria and it will all turn out gram neg.
sorry, don't know the answer to last question. i've never substituted it with aqueous primary stain... i don't think it will make a big difference though.
Reply:Mel Is this your story?
※※※ http://www.osoq.com/funstuff/extra/extra...
Increasing the length of time for counterstaining.
Destaining with ethanol for one minute.
Susbstituting aqueous crystal viloet for Grams' Crystal Violet.
What effect do you suspect the following would have on your judgement of the Gram reaction of an organism?
using an old gram stain would create precipitate on your slide. if you are not well trained in reading gram stains, you might mistake them as gram positive organisms.
increasing the length of counterstaining would make the organisms pink or falsely gram neg.
destaining for one minute is too much. you would overdecolorize the bacteria and it will all turn out gram neg.
sorry, don't know the answer to last question. i've never substituted it with aqueous primary stain... i don't think it will make a big difference though.
Reply:Mel Is this your story?
※※※ http://www.osoq.com/funstuff/extra/extra...
In the movie Aquamarine, Aqua has strips of blue on her hair, what is that style of coloring called?
In the movie Aquamariene, Aqua has strips of blue on her hair, somewhere inside her hair that only shows when she flips her hair, what is that style of clouring called? are they called highlights?
im Asian and im planning to get a some violet into my black hair cause i love violet. im fair and i got some pink on my cheeks (naturally), just a little, enough to notice.
do you think the colour will go well with my hair and skin?
In the movie Aquamarine, Aqua has strips of blue on her hair, what is that style of coloring called?
I think everyone is perfect the way they were born, but if light violet highlights in your hair floats your boat, so be it, everyone likes something different. :)
Reply:they're called highlights :D
Reply:They call it highlights.If you Asian,get some violet,is bad!Your hair is black,and violet is dark colour.But if you is brown-skinned people,that colour is good for you,because your skin more light than your hair!
im Asian and im planning to get a some violet into my black hair cause i love violet. im fair and i got some pink on my cheeks (naturally), just a little, enough to notice.
do you think the colour will go well with my hair and skin?
In the movie Aquamarine, Aqua has strips of blue on her hair, what is that style of coloring called?
I think everyone is perfect the way they were born, but if light violet highlights in your hair floats your boat, so be it, everyone likes something different. :)
Reply:they're called highlights :D
Reply:They call it highlights.If you Asian,get some violet,is bad!Your hair is black,and violet is dark colour.But if you is brown-skinned people,that colour is good for you,because your skin more light than your hair!
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