Co2 Definition and 295 Threads

[SOLVED] Distinguishing Between CO2 and Ar Explain how you would distinguish between argon gas and carbon dioxide gas My first thought was to boil some water to remove any dissolved gases, and then pass the two gases through samples of the water. The CO2 would react to form a weak solution...

I need a formula to figure out the expansion of CO2. Ex: if I'm at sea level, "room temp", I've got 1cubic foot of CO2 at 120psi, What is the volume when its released to ambient air ? Can anyone help? Shawn

I am so lost as to how I should approach this problem A soft drink is made by dissolving CO2 @ 3.00 atm in a flavored solution and sealing the solution in an aluminum can @ 20C. What volume of CO2 is released when a 355-ml can is opened to 1.00 atm @ 20C and all the CO2 is allowed to escape...

It has all the potential, the eve of the emission war: http://english.people.com.cn/200706/22/eng20070622_386680.html And sure enough: http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2007/06/21/eagore21.xml There is no climate crisis, only a perception thereof. Kind of Iraqi...

Homework Statement A 200g sample of CO2 occupies a volume of 110 L at a pressure of 1 atm. a) What is the number of moles in the gas b) What is the temperature? c) if the volume is increased up to 200 L and the temperature is kept constant. what is the new pressure. Homework...

Homework Statement Initial mass of the rocket is M = 30 x 10^3 kg, while its initial acceleration a = 3g. The rocket has four nozzles of diameter D = 20 cm each. Burning fuel leaves the nozzle with velocity v = 2.0 km/s having temperature T = 600◦C. Assuming fuel is burned completely and the...

Hi, I trying to help someone with an aquarium Experiment. Anyways I'm trying to find sources on how to calculate how fast CO2 should diffuse through their still water surface in response to CO2 demand due to their plants. I have the aquarium dimensions, plant biomass produced over the time...

If I have a tank of compressed air with 5% CO2 and 95% air, and I know the flow rate coming out of the tank is 0.01 LPM, how do I determine the number of [moles/L] of CO2 coming out of the tank?

I bubbled 5% CO2 through a needle into 30 mL of PBS open to atmosphere (25C) for approximately one hour and reduced the pH from 7.40 to 6.48. I was wondering if I can find the concentration of CO2 in the solution over time with one known (pH) using the Henderson-Haselbalch equation? I am...

im wondering what reaction would likely occur 2NO (g) → N2(g) + O2(g) or the reverse 2CO (g) + O2(g) → 2CO2 (g) or the reverse well the first one would occur if it were the reverse because of the high temperatures in the engine, but I am wondering about carbon monoxide, what do you guys think

Ernst Beck has published a highly controversial paper about the chemical measurements of CO2 is the past two centuries with chemical measurements and the problems thereof: Beck, E-G, 2007; 180 Years of Atmospheric CO2 Gas Analysis by Chemical Methods; Energy & Environment, Vol 18 No. 2, 2007...

In the other thread we / errm I discussed that theories cannot be proven but they can be falsified. Actually, without positive feedback, more CO2 is merely a mild friendly climate alleviator at the most So the issue here is the positive feedback factor of CO2 on the termination of ice...

Homework Statement Arrange in increasing order of bond length: CO, CO2, CO3^2- The Attempt at a Solution CO2 has double bonds, CO has back bonds and Co3 2- has a partial double bond (resonance), so it should be CO2>Co3 2->CO. Is that right?

I have the answer to the problem... only my problem is I can figure out how in the world world they came up with it. Here it is... I am sure it a pretty easy equation... only I don't get it! Calculate the mass of CO2 produced by the combustion of a tank of gasoline. Assume the mass of...

How to separate CO2 into C and O2, how can this be done, will this require, much energy?

http://www.nrl.navy.mil/Review05/images/05Space(Picone).pdf Greenhouse Effect Could Cause a Space Problem Always focusing on the negative. :rolleyes: Actually, the positive benefit (have to reboost the satellite less often) is limited to only a few satellites, while the increasing...

There is a big move in the fossil fuel industry, particularly coal, to solve the problem of green-house gas emissions by sequestering CO2 in the Earth in geological formations that are believed to be stable. This gives rise to a number of questions to which I would like to see comments...

0? latitude and north, the CO2 concentration over time goes from rather soft to erratic. What is responsible for this? Also, what is the mechanism in which CO2 concentration drops and rises every year?

I'm on a ridiculous pace for completing a year's worth of Chemistry... I have two weeks left to finish over a semester's worth, so I'm struggling to learn all the concepts thoroughly and get decent grades. And so I keep getting stuck on problems. This problem is really giving me a headache...

http://www.newscientist.com/article.ns?id=mg19125676.000&print=true Ooopsies. We guessed and guessed wrong. Then we guess again that we weren't actually wrong, it is just that the plankton are deficient in specfic nitrates and iron. That's the vibe I got.

Hi, Can someone help me find out what happens to temp of CO2 when under pressure? Its hard for me to throw any quantities at this so I am kind of guessing up a scenario.! Say you have a a steel box of 1m^3 and fill it with CO2 (which is 20'c) to a pressure of say 4 bar and then put this...

good day to everyone, i wish to ask what chemical in our environment asorb some energy from sun? and what it has to do with high C02 level in the atmosphere? thanks in advance

Temperature is constant. At first, this system is closed. In tank one: A 2 Liter tank containing H2 at a pressure of 1.5 atmospheres. In tank two: A 1 Liter tank containing N2 at a pressure of 3 atmospheres. In tank three: A 4 Liter tank containing CO2 at a pressure of 1...

Finding Amount of CO2 Help Please I am having trouble with my Alka-Seltzer, Water lab. The purpose of the lab is to figure out how much CO[SIZE="1"]2 is produced when an amount of Alka-Seltzer is mixed with an amount of water. The only equation we have is: Alka-Seltzer + H[SIZE="1"]2O...

why is Co2+ pink?

http://news.yahoo.com/s/ap/20051125/ap_on_sc/greenhouse_gas http://www.abc.net.au/science/news/stories/s1516607.htm http://www.newscientist.com/article.ns?id=dn8369&print=true

If found a few places that suggest that CO2 1 has a face center cubic with 4 CO2 atoms in the unit cell. Does this sound right? I could also use some literature source that backs this up.

I don't know if I solved this problem correctly. Balance the equation: CO[SIZE="1"]2+ Mg -> MgC + O[SIZE="1"]2 Is this the right end result and can someone help me figure out the state of matter for each.

I recently read an article that stated that the Arctic ice cap is melting at a geologically rapid rate and that the air temperature over the North Pole is doing the same. The link is below: http://www.msnbc.msn.com/id/9527485/ I was wondering if any data have been collected regarding CO2...

Help me understand please 0.6 mole of O2, 0.8 mole of CO and 0.5 mole of CO2 are added to a 2-L container. The system is heated and 0.15 mole of CO2 is formed. Does that mean that on top of the initial 0.5 mole of CO2 an additional 0.15 mole of CO2 is formed or does that mean that in total...

The vote of the majority may say more about the convincing power of the ideas than provide an good understanding of the reality. But what do we think?

Gday, Just wondering how to work out at what pressure 7g of CO2 will dissolve in 375ml of water at room temperature. Do I need empirical data? Or can I do it analytically? Thanks, knarl.

Heya. Let's say I want to build a water rocket and I want to pressurise it with a 12 or 16 g CO2 canister used for powering airguns. I want to calculate the optimal size of the pressure tank, and I want to predict the thrust of this device at various nozzle diameters. So here's the...

I was at work today, and this guy named harold who is pretty smart was discussing the safety of CO2 with his coworker. We fill CO2 tanks like those used for grilling (I think)..anyway, he said that unlike compressed air, you cannot get hurt by CO2 rushing out of a broken valve. He said that...

What is the approx. efficiency of the conversion of light energy to chemical energy in photosynthesis? a. 100% b. 95% c. 15% d. 1% I doubt that it is 100%. Is it 15%? I did a search, and I read that the efficiency is 13% for CO2 fixation using solar radiation. I don't know if this is...

Can someone possibly give me some links or info which, in more detail will explain the mechanics and process of SFE CO2 extraction? Something beyond the ' CO2 is heated to 31 C at 74 bars' . I assume the unit is charged with the extraction media, charged with liquid CO2, brought to 74 bars...

I performed a cricket lab on three groups of crickets: fully fed, starved for 48 hrs, starved for 96 hours to see how these conditions would affect their carbon dioxide ouput.. The results attained were: 19 (Fed), 22 (48 hrs) and 17.5 (96 hrs) <--measured in μl/min of carbon dioxide the...

Last semester we extracted caffeine from tea with CH2Cl2 and we were told it's possible to do the same thing with liquid CO2. This is interesting but pretty hard to do since you need high pressure/low temp in order to get liquid CO2. My question is: would it be possible to use liquid nitrogen...

I watched a program on some public broadcast channel where a professor from a university detailed the possible ends of the earth. One of them (from what I recall) had to do with lowering CO2 levels in the distant future. The lack of CO2 would eventually kill off all plant life. I tried...

When I react CO2 with CaO I get CaCO3. If I react boric oxide with CO2 would it react similarly like the other one?

Hey. This probably seems like a bit of an odd question, but which do you suppose would weigh more? Blood with a somewhat average saturation or oxygen (like that which would be found in a healthy individual), or blood completely devoid of oxygen & saturated with carbon dioxide (as in if...

As title, CO2 is non-polar, why it can dissolve in water which is a polarized slovent?

Which has the most CO2. The Earths Crust or the Earth's atmosphere. I know the atmosphere contains only .035%, but I can find any info on the amount of CO2 in the Earth's crust. thanks Nautica

Part of Explorations today dealt with CO2 emissions and the melting southern ice shelf. I have a colleague who argues against placing controls on CO2 emissions because, since CO2 is a naturally occurring gas, there is no way that it can be justifiably called 'harmful'. Since it is 'natural'...

C2H5OH -> CO2 "Carbon is oxidized from an oxidation state of -2 in C2H5OH to +4 in CO2" Don't the rules for oxidation states say that a monatomic ion is the same as its charge, therefore, C cannot be -2 because -4 (C) + 5 (H) + -1 (OH) yields 0 as a charge?