Sunday
April 20, 2014

Search: Chemistry - Molecular Structure

Number of results: 104,532

chemistry
can you check my answers in the parenthesis 1)The molecular structure around the oxygen in water is (bent) 2)The molecular structure around all the carbons in ethanol is (tetrahedral)
Monday, February 1, 2010 at 8:18pm by blasting

chemistry
The molecular structure around the oxygen in water is ? The molecular structure around all the carbons in ethanol is ?
Monday, February 4, 2008 at 8:02pm by lucas

chemistry
The molecular structure around the oxygen in water is . The molecular structure around all the carbons in ethanol is .
Sunday, February 10, 2008 at 10:20pm by Anonymous

chemistry
What is the molecular structure around the oxygen in water? What is the molecular structure around all the carbons in ethanol?
Sunday, February 10, 2008 at 10:41pm by Anonymous

Chemistry
The molecular structure around the oxygen in water is ?????? The molecular structure around all the carbons in ethanol is ?????
Monday, February 2, 2009 at 4:40pm by Anonymous

chemistry
what is the molecular geometry of IO3- when the angle is 105 degrees? What is it when the molecular geometry is 120 degrees? Which angle creates the most stable structure with the highest Boltzmann Distribution? Create a lewis structure that agrees with your findings?
Monday, January 11, 2010 at 6:14pm by bubble

chem
A molecular compound is composed of 58.8% Xe, 7.2% O, and 34.0% F, by mass. If the molecular weight is 223 g/mol, what is the molecular formula? Draw the correct Lewis structure. Predict the molecular geometry using the VSEPR model.
Monday, December 13, 2010 at 1:25pm by chemistry

Chemistry - Molecular Structure
What is the molecular geometry of a molecule with 5 outer atoms and 1 lone pair on the central atom?
Monday, December 17, 2012 at 4:39pm by Amy

chem
The fact that ice is less dense than water is related to the fact that ____. the molecular structure of ice is much less orderly than that of water the molecules of ice are held to each other by covalent bonding ice has a molecular structure in which water molecules are ...
Monday, January 30, 2012 at 4:39pm by Lexi

chemistry
what is the molecular geometry of trans-difluroethylene: trans-C2H2F2? I know how to draw the lewis structure but I'm not sure how to find the molecular geometry. I think it's a tetrahedral
Saturday, May 24, 2008 at 2:02pm by Cabel

chemistry
what is the molecular structure around oxygen in water?
Thursday, February 7, 2008 at 2:40pm by johnny

chemistry
The molecular structure around the oxygen in water is???
Sunday, February 7, 2010 at 7:35pm by random

Advanced Chemistry
What is the (name of the) molecular structure of AlCl3NH3 ?
Wednesday, February 24, 2010 at 12:01am by Inga

chemistry
The molecular structure around the oxygen in water is . ---is the answer bent or angular?
Monday, February 11, 2008 at 6:48pm by anonymous

Chemistry
The molecular structure around the oxygen in water is _________ I dont know what to put
Saturday, May 3, 2008 at 2:34am by CHRIS

chemistry
draw the structure of 2,4-dimethyl-3-ethyl-2-heptanol and give the molecular formula.
Sunday, November 23, 2008 at 10:21pm by Anonymous

chemistry
okay the molecular formula is: (CH3)(COHCH3)(CHCH2CH3)(CHCH3)(CH2)(CH2)(CH3) ...the brackets represent one of the seven parent carbon atoms (hepta- informs that there are 7 of them) it is difficult to illustrate the structure on this post but it is exacty like in the molecular...
Sunday, November 23, 2008 at 10:21pm by z.

Chemistry
Organic solvents consist generally of non-polar molecules. Ionic compounds are made of electrically charged particles which are not attracted strongly by non-polar molecules. Covalent (molecular compounds) tend to dissolve in solvents with similar structure. Most organic ...
Wednesday, March 4, 2009 at 5:21pm by GK

Chemistry
The molecular structure around all the carbons in ethanol is ________ I dont know what to put
Saturday, May 3, 2008 at 2:34am by CHRIS

chemistry
C4 H10 O or diethyl ether or with a formula of CH3CH2OCH2CH3 its stick structure is H H H H ! ! ! ! .. H-C-C-C-C- O-H ! ! ! ! .. H H H H I used the this ! sign as a sign for bond. pls help me to determine the geometry for each central atom in this structure. 1) C Trigonal 2) C...
Friday, October 5, 2012 at 11:24pm by chemdummy

Chem
We have no idea what experiment you are doing unless you tell us what is going on. For ClF3, this is a trigonal bipyramidal electronic structure and T shaped molecular structure because of the two set of unpaired electrons.
Tuesday, November 2, 2010 at 12:17pm by DrBob222

chemistry
Determine the structure of the compound by using the IR and 1H NMR of a spectra that has the molecular formula: C4H8O2
Monday, October 31, 2011 at 6:03pm by jennel

chemistry
What is the molecular structure of the molecule AlCl3? What characteristic is notable about the structure that helps us to understand the acidic nature of AlCl3?Write a chemical reaction between AlCl3 and NH3 ignoring any reaction between AlCl3 and the solvent. Show and name ...
Tuesday, February 23, 2010 at 10:29pm by kiki

Molecular biology
What is the importance of the tertiary structure of a tRNA? I know the structure, but I'm not sure what is the importance of it. Is it stabilization?
Wednesday, February 24, 2010 at 1:20pm by Zoe

Honors Chemistry
What is the molecular structure of the molecule AlCl3? What characteristic is notable about the structure that helps us to understand the acidic nature of AlCl3?Write a chemical reaction between AlCl3 and NH3 ignoring any reaction between AlCl3 and the solvent. Show and name ...
Tuesday, February 23, 2010 at 11:02pm by HonorsChemistryKid

Chemistry
Give the molecular orbital description [e.g. sigma(sp3-sp3)] for each unique bond in the following structure. CH3NCHCCH I know how to draw the lewis structure and what a sigma and pi bond is, but I don't understand what the (sp3-sp3) part after the bond means or how you ...
Sunday, September 8, 2013 at 5:07pm by ramire2

organic chemistry
Determine the structure of the compound by using the IR and 1H NMR of a spectra that has the molecular formula:C4H7ClO2
Monday, October 31, 2011 at 6:00pm by jennel

organic chemistry
How is overall molecular polarity affected by molecular symmetry (specifically shown for alkenes in book)? And what are the consequences for melting and boiling points (in cases of high molecular symmetry versus low molecular symmetry)?
Tuesday, September 4, 2012 at 9:07pm by CHRIS

Organic Chemistry
If 3-bromo-1-propanol is treated with NaOH, a compound of molecular formula C3H6O is formed. suggest a structure for this product.
Wednesday, December 29, 2010 at 10:43am by ME

chemistry
Explain in terms of molecular structure why sugars have a relatively high melting point compared to hydrocarbons of a similar size.
Wednesday, May 7, 2008 at 9:59pm by Mable

chemistry
Explain in terms of molecular structure why sugars have a relatively high melting point compared to hydrocarbons of a similar size.
Wednesday, May 7, 2008 at 10:34pm by Mable

Chemistry
What is the Lewis structure formula, electron pair geometry and the molecular geometry for SO4^2-
Wednesday, August 7, 2013 at 1:12am by rose

biology
because of the molecular weight of the molecules and structure of the ion channels and carriers or vectors and one more thing is all the structures of channels and carriers structure is genetically determined.
Friday, February 17, 2012 at 1:16pm by ramannachowdary

I need an answer--molecular/electron geometry
The molecular geometry is octahedral and you are correct. If you draw the Lewis structure, you will see it has no unpaired electrons on the central atom(S); therefore, the electronic geometry is octahedral, also.
Tuesday, February 8, 2011 at 8:03pm by DrBob222

chemistry
How is overall molecular polarity affected by molecular symmetry (specifically shown for alkenes in book)? And what are the consequences for melting and boiling points (in cases of high molecular symmetry versus low molecular symmetry)? I looked for help in the book but it ...
Wednesday, September 5, 2012 at 1:52pm by CHRIS

Chemistry
MgO has no molecular shape because it is not made of molecules. It is an ionic solid. The crystal structure of MgO is similar to that of NaCl (cubic cf8).
Monday, December 29, 2008 at 6:44pm by GK

biology
Try some of the following links: http://search.yahoo.com/search?fr=mcafee&p=how+to+label+the+ecstasy+molecular+structure%3A+ Sra
Monday, February 28, 2011 at 8:32pm by SraJMcGin

Chemistry (PLS HELP ASAP)
Sorry, MM is the molecular mass or 'molecular weight'. Molecular weight tends not to be used as it is a rather old fashioned term. Weight has units of newtons which can be confusing. In the above if you divide 1.5 g by your figure of 0.0089921441 mole (you forgot the leading ...
Monday, January 11, 2010 at 10:23am by Dr Russ

Ap chem
I can't draw the Lewis structure on this board but here isw a link that will show you. https://www.google.com/search?q=lewis+structure+PF3&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a&channel=sb The molecular structure is here. https://www.google.com/...
Wednesday, February 12, 2014 at 10:28pm by DrBob222

help needed !!! URGENT
Can some one help me I donít know what to take out from the aspirin molecule, for the following structures? I have to generate a copy of the molecular structure of aspirin and then for each of the molecular features listed in (i) Ė (iii) have to produce a related structure ...
Saturday, June 30, 2007 at 4:51pm by kat

chemistry
explain what is meant by the term 'Hybridisation' in molecular orbital theory and show how the concept can be used to explain the structure and bonding in ethane C2H6 ETHENE C2H4 AND ETHYNE C2H2
Tuesday, December 13, 2011 at 8:18am by rebecca

chemistry
Kinetic energy for a single molecule is Ek=(1/2)mv^2 [m = molecular mass, v = molecular velocity] The average of all the individual molecular kinetic energies is what you are asking for. The temperature of a substance is proportional to the average molecular kinetic energy: (1...
Tuesday, June 10, 2008 at 8:45pm by GK

Science
How do the properties of methane relate to its molecular structure?
Monday, June 22, 2009 at 8:41am by Kelly

Chemisty
The molecular structure around the oxygen in water is....????
Friday, February 5, 2010 at 1:36am by SuSu

chemistry
I have a chart and I have to draw the structure,name the shape snd lable the bond angle of some compounds. I've done most of them but im stuck on a few so heres what I need.Please and thank you structure of NF3 structure,shape and bond angle of TeCl2 bond angle of CCl4 CCl4 is...
Wednesday, May 16, 2007 at 7:22pm by mike

chem
Determine the electron and molecular geometries of each of the following molecules. For those with more than one central atom, indicate the geometry about each central atom. (Enter your answers in the order given in the skeletal structure from left to right.) CH3OH (skeletal ...
Saturday, January 29, 2011 at 5:13pm by hannah

chemistry
The smallest particle of a compound that has all the chemical properties of that compound. Molecules are made up of two or more atoms, either of the same element or of two or more different elements. Ionic compounds, such as common salt, are made up not of molecules, but of ...
Monday, May 5, 2008 at 12:25am by ~christina~

organic chemistry
Do a Google image search on "morphine isomers". Look at the best structure you can find. Locate the central carbon atoms that are linked to four different "groups". The four "groups" could be four carbon atoms which are linked to different parts of the molecular structure. I ...
Saturday, July 26, 2008 at 9:15am by GK

science
Can some one help me I donít know what to take out from the aspirin molecule, for the following structures? I have to generate a copy of the molecular structure of aspirin and then for each of the molecular features listed in (i) Ė (iii) have to produce a related structure ...
Friday, June 29, 2007 at 6:41pm by katie

Chemistry
# Electron Pairs # Lone Pairs Electronic Geometry Molecular Geometry Lewis Structure Sketch of Shape I need to do the above things for SBr6 and BrCl5. If anybody can help that would be great!
Tuesday, April 26, 2011 at 3:18pm by Jake

chemistry
the molecular geometry is tetrahedral..but the structure is trigonal pyramid i.e. three surrounding atom with 1 lone pair of electron around As. but the overall arrangement of the electron density is tetrahedral (four sites occupied). trigonal planar structure exist in ...
Saturday, June 1, 2013 at 7:38am by bonjo

chemistry(check my answer)
how do resonance structure related to its real structure? resonance structure is just another way to write the lewis dot with different formal charges and bond order
Thursday, April 8, 2010 at 1:21am by phys

Chemistry
If I am given a molecular hydrocarbon structure, how would I be able to tell how sp3 hybridized carbons it possesses? Like my current question asks How many sp3-hydridized carbon atoms does 11-cis-retinal possess?
Sunday, January 27, 2008 at 5:57pm by Raj

biology
describe 2 structures of bacterial cells what they look like and their molecular structure
Wednesday, January 13, 2010 at 5:50pm by jessica

CHEMMMMM
You must draw these out for yourself. We can't do these on this board. For ICl3, there are 5 domains which means electronic geometry of trigonal bipyramidal. Molecular geometry is T-shaped. Here is a link. I expect you can find all of them through google. You can post here if ...
Friday, March 30, 2012 at 12:41pm by DrBob222

Physics
giant metallic structure---delocalized electrons giant ionic structure-----mobile ions giant covalent-----delocalized simple molecular struct.----absence of mobile ions
Saturday, November 5, 2011 at 9:52am by Kon

Chemistry
Identify the true statement about Lewis structures. Select all the correct answers. 1. Hydrogen is usually surrounded by 4 electrons in a valid Lewis structure. 2. A single bond in a Lewis structure represents 2 electrons. 3. A double bond in a Lewis structure represents 2 ...
Tuesday, February 26, 2013 at 11:37am by will.i.am

chemistry
its a picture that goes with the question but jiskha wont let me post a link to the picture.. the original question says...Determine the structure of the compound that has the IR and 1H NMR spectra shown...It has the molecular formula: C4H8O2
Monday, October 31, 2011 at 6:03pm by jennel

Science
Describe how the structure of DNA is correlated with its role as the molecular basis of inheritance in Biology.
Friday, March 28, 2014 at 12:32pm by Sally

chemistry.
The relative molecular mass of A is 116. Determine the molecular formula for A.
Sunday, September 20, 2009 at 2:12pm by Some kid.

chemistry
molecular weight is 284.5 g/mol what is the molecular formula.76.0% C, 12.8% H, 11,2%O.
Saturday, October 13, 2012 at 7:54pm by Lornie

chemistry
Based on their molecular structure, how can you figure out which is stronger between two oxyacids? Our textbook is really vague. I thought it had to do with which had more oxygen but one of the question compares CH3COOH and CCl3COOH so now I'm lost again.
Friday, March 25, 2011 at 1:26am by redgy

chemistry
Polyglycolic acid, PGA, is a polymer that we know rather well how to control the structure of (even though there are currently only limited applications). So in the lab we have created two types of PGA for testing, a linear chain PGA and a branched chain PGA. Assume comparable...
Saturday, December 21, 2013 at 10:08am by Dick

chemistry
Can a molecular formula be used to predict the molecular shape of a small molecule? Please explain how.
Thursday, March 20, 2008 at 3:39pm by ss

chemistry
how can you determine molecular polarity based on molecular shape?
Sunday, May 16, 2010 at 5:42pm by kellen

Chemistry
if a student finds the molecular weight of an unknown liquid to be 115 g/mole and the molecular formula of the liquid is CHCl3, what is the percent error in the student's molecular weight?
Monday, December 10, 2012 at 6:06pm by Gabby

Chemistry
If the formula you wrote is correct, yes. How do I know. Because there is only 1 O atom. For the molecular formula and empirical formula to be different, the molecular formula must be a multiple of the empirical formula. And for that to happen, the molecular formula must be ...
Tuesday, March 9, 2010 at 3:11pm by DrBob222

chemistry!
Of the four general types of solids [molecular, ionic, network covalent, metallic], which one[s] are generally soluble in nonpolar solvents? I'm thinking either molecular or ionic. Are either [or both] correct? molecular: like dissolves like is the rule of thumb.
Thursday, December 7, 2006 at 7:22pm by Alex

Chemistry
No, the true structure is a resonance hybrid of all of the possible Lewis structures that one can draw. Actually, no Lewis structure that we can draw is the correct structure.
Sunday, October 25, 2009 at 11:49am by DrBob222

chemistry
what transition metal complex is responsible for transporting oxygen in our blood? Also, what is its structure? The transition metal (there are several transition series---I assume you are referring to the 3d transition metals) is iron. As to its sturcure, the iron itself has ...
Tuesday, April 17, 2007 at 10:32pm by Bob

chem
Using the VSEPR theory, predict the molecular structure of each of the following molecules. (a)NI3 (b)AsH3 (c)OF2
Tuesday, March 19, 2013 at 7:50pm by Shady

chemistry
7.25 g of iron were reacted with sulfur until the product reached a constant mass of 13.50 g. If the experimental molecular mass of the product was measured as 572 u, what is the molecular formula of the product? What is the actual molecular mass of the product?
Wednesday, September 21, 2011 at 5:29pm by joan

chemistry
7.25 g of iron were reacted with sulfur until the product reached a constant mass of 13.50 g. If the experimental molecular mass of the product was measured as 572 u, what is the molecular formula of the product? What is the actual molecular mass of the product?
Wednesday, September 21, 2011 at 5:29pm by joan

Chemistry
the primary structure consisted of beta-pleated sheet..so the secondary structure is where the structure coiled and characterized by an alpha-helix. i don't about random coils... i chose hydrogen bond but its wrong..so its alpha helix....
Friday, May 31, 2013 at 12:36pm by barco

chemistry
a compound is found to be 94.1% o and 5.90% h. its molecular mass is 34.0. what is its molecular formula A. H3O2 B. OH C. H2O D. H2O2 I think D
Friday, November 23, 2012 at 6:41pm by drew

Chemistry
I actually did all that already.. Do you want me to post how I did it? And for the 2.00 g, don't I need the mass of the CHO compound and divide it by the moles to get the MM of the molecular formula? And then I do MM of molecular/MM of empirical to get the multiplying factor ...
Tuesday, August 6, 2013 at 9:26pm by Desz

Chemistry
The E (trans-) isomer is usually more stable because it is a less crowded structure (less steric hindrance), and because attractive intermolecular forces involving the H's are more easily formed. Building molecular models of the two kinds of isomers would help you visualize this.
Wednesday, June 17, 2009 at 6:47am by GK

chemistry
Density is related to intermolecular or other inter-particle distances. These are dependent on molecular or ionic radii, intermolecular attractions (or other cohesive forces), dispersive forces (repulsions) and molecular kinetic energies (molecular speeds). All these factors ...
Thursday, April 2, 2009 at 10:17pm by GK

chemistry
Which of the following statements concerning differences between ionic and molecular compounds is correct? Molecular compounds contains two elements, and ionic compounds contain three of more elements ionic compounds contain oxygen, and molecular compounds do not. molecular ...
Sunday, February 23, 2014 at 5:27am by Johnny

Chemistry: Electron Configuration
The following questions relate to the bonding in the OH-1 ion. (16 points) Write the electron configuration for H. (1 point) Write the electron configuration for O. (1 point) Draw the molecular orbital diagram for OH-1. (5 points) Draw the Lewis Structure for OH-1. (3 points) ...
Tuesday, May 20, 2008 at 8:09pm by Daniel

biology
how to label the ecstasy molecular structure plz name each part the formula is C11 H15 NO2 HCl
Monday, February 28, 2011 at 8:32pm by tarkan

Chemistry
The Group I anion has been oxidized to its molecular form: Br2 or I2 in the earlier steps. When you shake two layer mixture, the molecular (as opposed to ionic) Br2 or I2 are extracted into the hexane layer and give it the characteristic color or of one of those molecular forms.
Sunday, April 12, 2009 at 9:34pm by GK

Organic chemistry
compound with a molecular formula C8H16O has the following H-nmr spectrum: 3H triplet at 0.90, 1.0 to 1.6 8H multiplet, 2.05 3H singlet, 2.25 2H triplet. What is the structure of this compound? I think it is 2-octanone but not sure
Saturday, June 20, 2009 at 6:36pm by jeff

Chemistry
you can enter chemical formulas here http://www.lenntech.com/calculators/molecular/molecular-weight-calculator.htm to calculate molar mass easily.
Sunday, January 19, 2014 at 11:01pm by Steve

Chemistry
Find the molecular formula of a compound that is 48.38% carbon, 8.12% hydrogen, and 53.5% oxygen by mass and has a molecular weight of 328 g/mol.
Monday, April 23, 2012 at 9:18pm by Jo

General Chemistry
How do the vapour pressure of two substance at the same temperature but with different strengths of the inter-molecular forces compare. Give a molecular explanation of why this is so.
Wednesday, February 5, 2014 at 9:15pm by Raj

chemistry(correction)
I have been informed by DrBob222 that the structure of ethanol is actually CH3CH2OH, rather than what I wrote. Nevertheless, it is true that an asymmetrical structure is the source of the diple moment. Chemistry is not my field of expertise; I apologize for the error
Saturday, March 8, 2008 at 6:35am by drwls

Chemistry
Write the structure for the alkane: molecular mass = 72 u; forms four monochlorination products. Well since its 72u and its an alkane, I figured out that the formula is C5H12. But what does it mean that it "forms 4 monochlorination products"?
Thursday, January 31, 2008 at 2:39am by Raj

chemistry
I'm looking for the Lewis structure but not PbCl2. I need the Lezis Structure of PbCl3.
Tuesday, November 24, 2009 at 9:45am by Jeremy

chemistry
what is the lewis dot structure for SO4 -2 and the ideal bonds, mollecular structure and hybrid orbitals?
Thursday, January 15, 2009 at 5:06pm by Raj

science
Are there any related structure from an asprin? To show how important an asprin is from using a carboxylic acid. You need to clarify your question. I need to produce a related structure of the molecular features of carboxyli acid, size hydrocarbon group on ester and distance ...
Thursday, July 12, 2007 at 6:18pm by jake

chemistry
what is the molecular geometry of trans-difluroethylene: trans-C2H2F2? i want to say it is a tetrahedral because it has four atoms and no lone pairs, but im not sure. the bond angles of this is 109.5 and that is is the bond angles for tetrahedrals so is it good to conclude ...
Saturday, May 24, 2008 at 4:05pm by john

chemistry
Based on their molecular structure, why are these acids thes stronger of the two binary acids given? HCl stronger than HF HF stronger than H2O H2Se stronger than H2S Is this because of bond strength due to placement on the table of elements? thanks
Friday, March 25, 2011 at 1:17am by redgy

chemistry
Describe the structure of the water molecule and indicate how this structure is responsible for many of the unique properties of this vital compound.
Monday, August 4, 2008 at 3:39pm by kayla

Chemistry-Polarity
Ok, having a different structure makes sense - so how would I know what the structure is like for a specific molecule?
Saturday, November 14, 2009 at 8:36am by Mary

Chemistry - Bond Order
I spent some time looking on the web for the Lewis structure for BN but had no luck. I would do it this way. B:::N: B has 3e and N has 5 and 8 total. The structure I have drawn has zero formal charge on both B and N. The structure I have drawn has no unpaired eletrons; ...
Sunday, May 2, 2010 at 9:35pm by DrBob222

Chemistry
Draw the structure of the product formed by the reaction between methyl alcohol and formic acid and give the molecular formula? I did not understand the answer that you gave me it did not make sense to me and I couldnt find it to respond back im sorry. If you wouldnt mind can ...
Tuesday, April 17, 2007 at 6:08pm by Kellie

chemistry
how to draw atomic structure for elements from scandium to zinc ?and what is their valency number.plz show me the shell structure.
Saturday, September 22, 2012 at 11:02pm by J.Nandhini

Biology
Could somebody check this formula for the structure of hyroloysis of lactose C12H22O11+H20 ...> C6H12O6H12O6 OBVIOUSLY THE FIGURES ARE ALL SUBSCRIPT Many thanks Is that not the molecular formulae ???
Tuesday, March 20, 2007 at 4:43pm by Bex

Chemistry - Molecular Structure
Electronically it is octahedral. Geometrically it is square pyramidal. Here are some images. https://www.google.com/search?q=square+pyramidal+geometry&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
Monday, December 17, 2012 at 4:39pm by DrBob222

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