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Identify the unknown metal

Hi, I have a question, and I didn't know where to post it so I just decided to e-mail you!A 0.790g sample of unknown metal completely reacted with 25.00mL of 0.50 M HCl (the HCL is in excess). The...

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Join me for the Florida Fandango March 10 in Tampa

You can see me in person at the Florida Fandango March 10th.Bring your questions, and I will do my very best to answer them, or at least show you how anyone can use some my favorite resources to gather...

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We did the Fandango!

We are back in Marin County, from the Florida fandango! I gave talks on the chemistry of tea, and in doing so, it made me want to drink a lot more tea. I met the incredible Kim Pham of the Kaleisia tea...

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How does serotonin get formed from tryptophan?

Can you help me illustrate these reactions?Serotonin is formed by 2 steps. first is the decarboxylation of tryptophan to form tyrptamine,second is the hydroxylation of typtamine to form...

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Join me at the Bailey's Harbor Autumnfest in Door County, WI, Sept. 15!

If you would like to say hi to me, quiz me on my book (I'll bring my favorite, back-up references!) or just have me sign your copy, come by one of my favorite bookstores in one of my favorite towns!...

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Can a solution be electronegative?

Hi there Holly, I stumbled upon your website while doing a bit of research and thought that maybe you would be nice enough to answer a question for me. I'm not a chemistry student or a student of the...

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Separation lab

Hello,I have a chemistry question and was hoping you could help me out. Okay heres the basics:There are 7 possible chemicals all of these chemicals are XNO3PbNO3  ZnNO3 AgNO3 CuNO3 ect.Out of these 7...

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How does alcohol displace water?

On Apr 27, 2008, at 3:08 PM, BB wrote: I'm a pet grooming educator and I need help in explaining to groomers how an alcohol-based ear cleaner will displace water that might get into an animal's ear...

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Cold fusion? Or just a classic explosion?

Hello This is going to sound nuts but a few days ago I was bubbling hydrogen and oxygen through some soapy water and there was an ignition at the end of the hose in the soapy water.At first I thought I...

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Identifying the unknown metal

Hi Holly.  I have this metal ball and have had it for awhile and no one can tell me what it is.It is 12129 grams and is 141.56mm across, silvery-white, and hard,  acids don't attack it, polished a spot...

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Making sense of the orientation atoms in chemical structures

Hi, I was doing research on serotonin and I realized that most of the drawings show NH written downward, as if the N is on top of the H, but when it's not written that way, is it meant to be HN or NH?...

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Plant extracts, essential oils, wine, brandy, distillates, ethanol, methanol,...

Hey Holly, I’m into home craft cocktails, and also considering trying my hand at home distillation. Couple questions:1)      I’m well aware that some plants can have toxic components that can either be...

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The mystery of the multiple menthols

Dear Holly,I am facing a problem I cannot find an answer for, anywhere.  My company manufactures a topical analgesic.  We use camphor and menthol crystals.  We have never had problems until a new...

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Join me at the Bailey's Harbor Autumnfest in Door County, WI, Sept. 15!

If you would like to say hi to me, quiz me on my book (I'll bring my favorite, back-up references!) or just have me sign your copy, come by one of my favorite bookstores in one of my favorite towns!...

View Article

Can a solution be electronegative?

Hi there Holly, I stumbled upon your website while doing a bit of research and thought that maybe you would be nice enough to answer a question for me. I'm not a chemistry student or a student of the...

View Article


Separation lab

Hello,I have a chemistry question and was hoping you could help me out. Okay heres the basics:There are 7 possible chemicals all of these chemicals are XNO3PbNO3  ZnNO3 AgNO3 CuNO3 ect.Out of these 7...

View Article

How does alcohol displace water?

On Apr 27, 2008, at 3:08 PM, BB wrote: I'm a pet grooming educator and I need help in explaining to groomers how an alcohol-based ear cleaner will displace water that might get into an animal's ear...

View Article


Cold fusion? Or just a classic explosion?

Hello This is going to sound nuts but a few days ago I was bubbling hydrogen and oxygen through some soapy water and there was an ignition at the end of the hose in the soapy water.At first I thought I...

View Article

Identifying the unknown metal

Hi Holly.  I have this metal ball and have had it for awhile and no one can tell me what it is.It is 12129 grams and is 141.56mm across, silvery-white, and hard,  acids don't attack it, polished a spot...

View Article

Making sense of the orientation atoms in chemical structures

Hi, I was doing research on serotonin and I realized that most of the drawings show NH written downward, as if the N is on top of the H, but when it's not written that way, is it meant to be HN or NH?...

View Article
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