Carbon Definition and 522 Threads

Homework Statement ...Consider a diffuse gas cloud that contains carbon monoxide (CO) molecules... What are the radio wavelengths (in cm) and frequencies (in GHz = gigahertz = 109 Hz) corresponding to transitions between the ground state, the first excited state, and the second excited...

What is the best way to distinguish and separate chrome steel, carbon steel, and stainless steel? I.e., if I had balls of chrome steel, carbon steel and stainless steel that were all of the same size, how could I tell them apart? The weights of the materials are very similar, and I am looking...

I was wondering if there was a definitive chart/data table with the properties of such a material. Many time has been spent looking through many papers, yet I am yet to find a table with for instance ... max tensile strength, max toughness, max conductivity I know there are many variations...

I have heard of carbon compounds in the form of rings or circles like cyclohexane and cyclopentane and it set me wondering of why carbon atoms do not form square or triangular rings. Could someone explain the reason?

I cannot find the strain hardening (n-values) for steels online anywhere. I need to see a bunch of typical values if possible. Can anyone direct me to a online website? Or atleast mention what the typical n-value is for a low carbon steel? Thanks

I have 6" Carbon steel pipe Question. I am working on a project. I have 6" Carbon steel pipe which I am going to use 10" High Density Polyethylene Pipe(HDPE) to sleeve and protect 6" pipe from corrosion. This pipe will be buried. I am trying to use electrofusion coupling to connect HDPE. The...

atmosphere, carbon dioxide and water vapour help?? (c) One cubic metre (1 m3) of atmosphere at sea level contains 3.80 × 10(power of)2 ppm of CO2 and 5.00 × 10(power of)3 ppm of water vapour. If there is a total of 2.6 × 10(power of)25 molecules in 1 m3 of air, calculate how many...

Hi guys, I'm a physicist and would appreciate some direction in helping me understand the dynamics (or chemistry) of graphite in a bath of liquid metal. Eventually the bath is cooled into a solid ingot. There are several different metals which are used (Cu, Fe, Al as well as many alloys). Any...

Homework Statement The radiocarbon in our bodies is one of the naturally occurring sources of radiation. Let's see how large a dose we receive. 14C decays via Beta- emission, and 18% of body mass is Carbon. A) Write out the decay scheme of carbon-14 and show the end product. (A neutrino...

Greetings, I'm trying to find out whether or not straight multi-walled carbon nanotubes (MWCNT) have the ability to slide telescopically. Although I have no formal education on the subject, my suspicion is that quantum interactions will inhibit axial motion, but I'm intrigued as graphite...

Hi, can anyone tell me what the electron densities of Carbon Strontium water calcium are? i can't find it anywhere on the web. Thanks

What are the effects of "Analyte-Nanotube interactions" in the CNTFET device?

Homework Statement What type of hybridization occurs in the orbitals of a carbon atom participating in a triple bond with another carbon atom? The Attempt at a Solution I honestly thought it would be sp3 but it turns out to be sp. Can someone explain this to me? Thanks!

How Can i built carbon fibre parts at home work shop?

? Or the process chemistry behind the synthesis of Carbon 60

Homework Statement I want to know if methane gas (CH4) is able to pass through activated carbon and not get trapped. If it can how does it pass and why does it passes. Homework Equations The Attempt at a Solution

The ground state electron configuration of Carbon atom is 1s^{2}2s^{2}2p^{2} For the electrons, 1s^{2}2s^{2}, L=0, S=0 So only consider electrons of 2p^{2}, and s_{1}=s_{2}=1/2 ---> S=0,1 l_{1}=l_{2}=1 ---> L=0,1,2 For S=0, L=0; J=0, so we have ^{1}S_{0} For S=0, L=1; J=1, so...

think that all the mass of the atom are concentrate in nucleus and the shape of the nucleus is like a ball with radius =1.5*10^5. IF the mass of the carbon atom = 2.0*10^23. what is the density of the carbon atom? the volume of the planet Earth=4/3pie*r^3 i just want to say that...

Consider the following hypothetical situation. A solution of pure single walled carbon nanotubes is attached to a base (flat surface) with a regular array of "chemical hooks" which bind to a functional end of the nanotube. The tubes are connected to a similar base at the other end and then...

Looking for ideas that allow me to create Methane ( CH4 ) from gaseous hydrogen. This requires bonding one carbon atom to four hydrogen atoms, which should be simple enough, but there needs to be a minimum explosive danger. I know there are appliances to go the other way, but don't have the...

I thought that carbon monoxide in normal room air would be oxidized by the oxygen in the air, and that this would happen fairly quickly. Instead, I was astonished to read that CO is oxidized by the hydroxyl ion. Indeed, most flammable gases in the atmosphere seem to be consumed by hydroxyl...

Does there/or could there exist a molecule made only of carbon, that is smaller than C20?

Homework Statement Minimal growth medium for bacteria such as E. coli includes various salts with characteristic concentrations of mM and carbon source. This carbon source is typically glucose and it is used at 0.2% ( a concentration of 0.2g/100mL). a) Make an estimate of the number of...

A Carbon atom has 6 protons, 6 neutrons and 6 electrons orbiting. If an atom gains or loses an electron it becomes an ion with a negative or positive charge. If it gains or loses a neutron, then the atom becomes an isotope. From what I read, Carbon-12 is an isotope of Carbon. Yet Carbon-12 has...

Many people believe that plant-derived compounds are healthier than their "identical" artifical petrochemical counterparts. The only difference however is the amount of carbon-14 (more carbon 14 compounds from plant-dervied sources). So if anything, in this regard, wouldn't the artifical...

Hello, In my old papers, I could find a nice P-T diagram for Carbon Dioxide. I am interrested in liquid-gas equilibrium data, specially enthalpy and internal enery. Unfortunately, the diagram doesn't fit very well my current purpose. Moreover, I would like to make more use of my computer...

Hi I believe when you add carbon dioxide to water it will undergo hydrolysis to form carbonic acid CO2 + H20 <=>H2CO3 But i believe the CO2 is only weakly soluble so what happens to the rest of the CO2 that doesn't undergo hydrolysis? Does it exist as a gas in the water? thanks

A Standord Solar Research Post about a new Solar Membrane Panel, flexible for a wide variety of uses, (clothing rechargers anyone?), offered that the panel design includes deposition of Carbon atoms extracted from Methane. My concept went to extracting Carbon Atoms from Carbon Dioxide and...

Evolution of Carbon dioxide from Sodium bicarbonate and potassium hydroxide??! Hi!:smile: Here’s a question my teacher asked me to solve about evolution of carbon dioxide, We know that carbon dioxide is obtained by the action pf dilute acids on any metallic carbonate or bicarbonate e.g...

Does the Carbon in a hydrocarbon do anything for combustion?

What are the known or suggested effects of γ-radiation on carbon 60?

We have all been hearing plenty of things in the last decade about the development of carbon free cars. Although someone impractical right now, it is certainly doable. However, I have not really heard anything about alternative fuels for aircraft. It seems reasonable to expect that we could...

I had a question in a lab about which elements are least likely to form polar covalent bonds with hydrogen. From what I understand, what governs how polar a bond is, is the electronegativity of the element. The answer said that Carbon was the one which was least likely to form the bond, but...

How much carbon dioxide has Eyjafjallajokull pumped into the atmosphere during the present eruption, compared to the amount not pumped in by aircraft during the recent "no fly" period in Europe?

So today my Math teacher and I got into a discussion about Carbon Dating and exponential decay. The book gave one equation and I (thinking back to chemistry) got another. They both had the same answer (which was great, my teacher was proud) but we could not figure out why. Here it is: 4...

Homework Statement Consider the CO2 molecule as a system made of a central mass m_2 connected by equal springs of spring constant k to two masses m_1 and m_3 a) set up and solve the equations for the two normal modes in which the masses oscillate along the line joining their centers (the...

Homework Statement An organ pipe is blown with carbon dioxide and produces waves 2 ft long and a note with a frequency if 350 Hz. What is the velocity of sound in carbon dioxide? How do you account for the fact that this is not the same as the velocity in air? Homework Equations...

Is the preponderance of carbon compounds due primarily to their biological origin?

Term Symbol for Carbon Total Angular Momentum 1. Write the term symnbols for carbon atom He2s22p2 which has two equivalent p electrons taking into account the Pauli exclusion principle. 2... 3. Since the carbon has two equivalent p-electrons, we know the l1=1 and that l2=1 as well. Also the...

Homework Statement At what distance from a carbon nucleus is the electric potential 2.1 V? Carbon atoms have 6 electrons in the atomic shell. Homework Equations v= K Q / r^2 OR K Q / r (NOT SURE) The Attempt at a Solution use voltage potential for point charge Using either v= K Q / r^2...

Homework Statement Consider a neutral carbon atom that has six electrons orbiting the nucleus. Suppose that five of the electrons are in their lowest states,but the sixth is in a very high state. Why might the energy levels for the outermost electron be similar to those for the single...

I've been wondering recently about the air quality in cities. Suppose all cars/transport methods were to go electric or clean (electric cars etc...) how much would air quality improve by? In other words what % of the nitrous oxide and carbon dioxide emissions are mobile sources responsible for...

any papers/ articles on carbon fibre?? hey I'm looking to do a study into the acoustic properties of carbon fibre but haven't been able to come across any current papers dealing specifically with this topic. does anyone know of any journals that have had published articles or better still...

Homework Statement If you were to count the number of carbon atoms at the rate of four each second, how long would it take you to count 6.0 grams of Carbon atoms? Homework Equations ---- The Attempt at a Solution 6.0 g Carbon x [1 mole carbon atom / (6.02 x 10^23 grams )] = 9.97x10^-24...

In C1OOH-C2H(OH)-C3H(OH)-C4H(OH)-C5OOH, is C3 stereocentre? >>Will it make any difference if I use the term 'stereogenic carbon' in place of 'stereocentre'?? Please, explain.

...The superposition of two states?... When I send a massive, classical chunk of carbonous stuff through a double slit, you can't expect me to believe that that chunk will magically turn into two equally massive chunks and do its constructive/destructive interfering, yet this is exactly what...

Hi All Hope this is the right forum, I am looking for an applied approach! I am interested in modelling the behaviour of CO2 powered rocket cars. These small models are powered by releasing pressurised carbon dioxide from a “sparklet” cylinder. The model cars race along 24 metre long...

According to a new book http://news.yahoo.com/s/afp/20091220/sc_afp/lifestyleclimatewarminganimalsfood This makes me wonder how much just the overpopulation of humans contributes to "global warming". Has anyone ever done the calculations? I've heard that 2 billion humans is the ideal...

http://airs.jpl.nasa.gov/AIRS_CO2_Data/AIRS_and_CO2/" I'm not sure about the long term analysis will work out, but it looks to me like the Atmospheric Infrared Sounder (AIRS) instrument is providing fundamental data about how our climate works.

Homework Statement In normal breathing conditions approximatly 5% of each exhaled breath is carbon dioxide. Given this informartion and neglecting any difference in water-vapor content estimate the typical difference in mass between an inhaled breath and an exhaled breath. assume one lungs...