Questions tagged [nomenclature]
This tag should be used for questions about the naming of compounds and elements, usually using systematic names according to IUPAC recommendations, but also using retained traditional names.
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using either 2-propanol or isopropyl alcohol for writing a report
I'm writing a report based on testing I've done on a material. I'm wondering if there is any convention on using different nomenclature for isopropanol. Which way of writing this molecule is consider ...
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Which of the following two IUPAC names would be accurate according to 1993 IUPAC rules?
I'm not looking for answers that are based on 2013 IUPAC recomendation based rules. But rather the old 1993 rules of IUPAC.
The two names are :
1.) Penta-1,2-dien-5-ol
2.) Penta-3,4-dien-1-ol
would we ...
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Aminium/Ammonium?
Chemdraw names this as 2-carboxyethan-1-aminium. Shouldn't it be ammonium? What's an aminium ion?
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When to use -ate and -ite for naming oxyanions?
I'm now learning about nomenclature. In particular, oxyanions.
Basically, when you have an anion that is a combination of a non-metal with oxygen.
According to my book:
It ends with -ate for the ...
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What is the correct way to specify the weight fraction from bulk compositional data with a listed total % (e.g. from XRF, ICP)?
TL;DR = With bulk composition results, such as from X-Ray Fluorescence (XRF) testing, is the mass fraction of a given analyte that analyte given as a % or the analyte divided by the given total mass %?...
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Nomenclature for two cyclohexane rings linked by a single bond
From my current basic organic chemistry knowledge, I suppose it is 1,1-dimethylcyclohexane-4-methylhexane. I considered one of the hexane ring as parent chain. But I'm looking for the correct answer ...
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What is the difference between hydrogen chloride and hydrochloric acid?
My teacher insists that hydrogen chloride is a misnomer, and that the proper nomenclature demands HCl to be named hydrochloric acid. However, I saw the name hydrogen chloride used in my textbook, but ...
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Why is active sec-pentyl group called so?
My teacher as well as Wikipedia — Pentyl group use the following names for the “pentyl” groups:
Group name
Structure with attachment point
1
active sec-pentyl
2
sec-pentyl
3
active pentyl
If a ...
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Are there common/trivial/archaic names for any of the periods of the periodic table?
There are "common names" for all of the s and p block groups of elements (alkali metals, alkaline earth metals, icosagens, crystallogens, pnictogens, chalcogens, halogens, noble gases) (...
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Why Ca 2+ and not Ca +2
I have been learning chemistry for a year or two but I still can't understand this. According to maths we should place the plus or minus sign in front of a number like -2. However, In chemistry we ...
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What do you call the number of atoms in a molecule?
I just bought a molecular modeling kit for my toddler ("Snatoms").
To use the kit to play with her, I want to start out by memorizing a list of all molecules (isomers) fitting these criteria:
only ...
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How to name binary (inorganic) compounds given their chemical formula, and vice-versa?
How can I deduce the name of a binary (inorganic) compound like $\ce{B2F2}$ or $\ce{N2O4}$, from the formula?
And how can I convert a chemical name like diboron difluoride to the chemical formula?
I ...
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Are periods the horizontal numbers on the periodic table and groups the vertical numbers?
I am writing this post so that I can ensure for my upcoming SUC3U0 (Chemistry, Grade 11) course test of nomenclature is correct. It's a Review of my Grade 10 General Science Course.
My teacher stated ...
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Nomenclature of an organic compound with multiple substituents
what is the IUPAC system of naming a compound with multiple substituents? I am not sure if the name should be something like 3-ethyne-1-hydroxy-5-yne-2-pentanone. This structure contains 2 triple ...
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Shouldn't this compound be called 2-methyl-5-(1,2-dimethylpropyl)nonane?
The book says that the name should have dimethylpropyl methyl nonane in that order. Shouldn't the methyl group come first since methyl comes before methylpropyl (in the alphabetic order)? Our prof ...
