If carbon dioxide gas is heavier than both nitrogen and oxygen gas, why doesn't it form a lowest layer in the atmosphere?
Carbon dioxide is heavier and in still air situations it does tend to pool around low objects. Therefore it is used to keep oxygen away from things being welded.Out in the open it is being constantly mixed by all sorts of major air movements. These include major air currents—the westerlies, air cells, storms, areas of warm air moving up and areas of cold air moving down(convection currents).Dispersion is another major way gases disperse, that is, move from areas of concentration to areas of lesser concentration.Both oxygen and nitrogen are usually dioxygen and dinitrogen in the atmosphere. So carbon dioxide is not that much heavier than the bulk of the atmosphere. There are many trace gases in the atmosphere that are heavier than carbon dioxide and yet they remain mixed as the atmosphere is constantly moving.
Which one of the following gases diffuse faster: Oxygen, Ammonia, Nitrogen, or Carbon Dioxide?
The diffusion of a gas is inversely proportional to the square root of it's Molecular Weight. The diffusion of the gases O2, NH3,N2, CO2 will be in the ratio√(1/32): √(1/17) :√(1/28) :√(1/44).The fastest diffusing gas will be AMMONIA.The slowest diffusing gas will be CO2.The diffusion rate will be in the order.NH3 > N2 > O2 > CO2.
If you mix carbon dioxide with liquid nitrogen, does it create dry ice?
yes it would.. Liquid nitrogen will be 77K or less at atmospheric pressure. CO2 freezes at about 194K... actually freezes isn't the right word.. "deposits" is better. it goes from gas to solid.. that transition is "deposition".. it's the opposite of sublimation. anyway.. bubble up CO2 gas through boiling liquid nitrogen and you'll make dry ice.
What is the state of matter of nitrogen and carbon dioxide at 25 degrees celsius?
I'm supposed to draw the particulate level diagram of matter for this and I'm not exactly sure what this is. Is it just where you draw the molecules of matter in the gas, liquid, or solid phase? It is also asked to label the substances in this diagram. I really want to understand this so if anyone can explain to me what is expected I would be very appreciative.
What happens when carbon dioxide dissolves in water?
Hello Adhi.The molecule Carbon-dioxide reacted with water , forming “CARBONIC ACID” and changed the colour of indicator.Reaction :-CO2 + H2O <=> H2CO3CO2 can exist solvated in water as CO2, but some molecule actually react with a water molecules to form “H2CO3” which, in solution, will dissociate like an acid ( in fact H2CO3 is CARBONIC ACID). So a CO2 solution of CO2 and water will be slightly acidic which is why sparkling H2O had a salty ( sour) taste.DISSOCIATION REACTION OF CARBONIC ACID IN WATER.Aqueous carbon dioxide, CO2 (aq) reacts with water forming carbonic acid, H2CO3 (aq).Carbonic acid may loose protons to form bicarbonate HCO3- and carbonate. In this case the proton is liberated to the water, decreasing PH . The complex chemical equilibrium are described using two acid equilibrium equations.Graphical representation :- just to show how PH varies….Hope this may helps you..Thank you..
What happens when sodium carbonate is mixed with hydrochloric acid?
It may already been answered on Quora, but here we go:It is a 2 step neutralization reactionWhen you start with a solution of Na2CO3 and slowly add an equivalent amount of diluted HCl ( H+ & Cl- )the reaction is: Na2CO3 + HCl ----> NaHCO3 +NaCl ( all disolved and in ionic form)If you then add even more HCl solution the pH go’s further down and the next reaction happens: NaHCO3 + HCl ----> NaCl + CO2 + H2O( the CO2 escapes as a gas the other products stay as ions in the solution)If you do this drop by drop you can make a nice titration curve:
What would happen if carbon dioxide was heavier than air?
Yes, assuming temperature and pressure are the same, a volume of carbon dioxide is heavier than an equal volume of air. In other words, carbon dioxide is denser than air. If they are kept as separate materials (and not mixed together), what happens when one material is denser than another? The more dense material sinks in the less dense material.So, if CO2 is more dense than air, you should be able to collect CO2 in the bottom of a flask (or a jar or a tall glass). Need proof? You can try this in a part of a room that isn’t drafty. Light a small tea candle and set it a little aside. Then, in one of the containers mentioned, mix baking soda and vinegar. A chemical reaction occurs:NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O + CO2In simplest terms, baking soda and vinegar react to produce sodium acetate and water and carbon dioxide. The sodium acetate goes unnoticed, dissolved in the water. The carbon dioxide goes unnoticed, too, because it is an odorless, colorless gas, but it rests above the water and below the air above it.Bring your container holding the CO2 over to the lit candle. Carefully, without pouring out the liquid, you can slowly pour the CO2 out over the top of the candle, and the flame will be snuffed out. CO2 is “heavier” than air, so it displaces the air (and oxygen) around the candle.
Why is argon used in MIG welding instead of something like nitrogen or even carbon dioxide? Does it have properties that enhance the process that other inert gasses lack?
I’m not a welder, but argon is a noble gas, meaning that its outer ring of electrons is full. Therefore it does not easily react with anything. That makes it an almost ideal gas where you want to avoid reactions or oxidation. When you’re welding you use extremely high temperatures and oxidation could be a problem.However it is extremely rare and therefore expensive and so welders use it in combination with carbon dioxide in proportions like 20% CO2 and 80% Argon or 75% argon and 25% CO2. Many welders find that this mixed gas gives better results and costs less.Nitrogen is way more abundant and not given to reacting, but in extreme temperatures it can be made to react with oxygen. Pure CO2 is burnt already and so it would seem to be perfect. But in certain rare circumstances it can form compounds. And so it’s best to use the combination of Ar + CO2. Argon comes from the Greek argos meaning lazy or inactive.
5dm3 of carbon monoxide, and 2dm3 of oxygen at the same temperature and pressure are mixed together...?
5/2 = 2.5 > 2/1=2 ============> O2 is limiter 2dm3 of O2 * 2 dm3 CO2/1dm3 of O2 ========> 4 dm3 of CO2 is max amount of CO2
What is the maximum amount of nitrogen dioxide that can be produced by mixing 4.2 g of NO and 3.2 g of O2?
Maximum amount of nitrogen dioxide to be produced to 6.44 gm.Step 1First of all, we need to write the balance equation of the reaction2NO + 02 --------------> 2NO2Step 2Now, All we need to find out it's mole.Given,Weight of NO = 4.2 gmSo,Mole = Weight/ M.mass Of NO= 4.2/30= 0.14Step 3In balance reaction, We take 2 mole of NO to yield 2 mole of NO2 .So, Mole of No2 = 0.14 × 2/2= 0.14Step 4Now,Maximum amount of nitrogen dioxide (NO2) is nothing but find out its weightWeight (NO2) = Mole of NO2 × M.mass ofNO2= 0.14 × 46= 6.44 gmCheers ! ✌