20cmcube of carbon2oxide are sparked with 20cmcube of oxygen. If all the volume of gas are measured at S.T.P calculate the volume of the residual gas after sparking
7 answers
I dont understand it that is why i am asking
I don't understand it either.
First, CO2 + O2 --> what? what are the products?
Also, what do you mean by residual gas. Look at your post and proof it with the original question.
First, CO2 + O2 --> what? what are the products?
Also, what do you mean by residual gas. Look at your post and proof it with the original question.
Residual means remainin gas
Balance this equation
Co2 Plus O2
Co2 Plus O2
what are the products?
CARBON2oxide and oxygen
OK. I know the problem. Carbon(II) oxide is carbon monoxide or CO.
................CO + O2 --> CO2 unbalanced
...............2C + O2 --> 2CO2 balanced
initial....20 cc + 20 cc.......??
20 cc CO will require 10 cc O2 to react completely so CO is used up (CO is the limiting reagent) and there is an excess of 10 cc O2 remaining. In the process 20 cc CO2 is formed. So the residual gas left is 0 cc CO + 10 cc O2 unreacted + 20 cc CO2 product formed. The total is the sum or 30 cc assuming initial and final states are measured at STP.
Note: I was thrown off initially by Carbon2oxide. Of course that is carbon(II) oxide.
................CO + O2 --> CO2 unbalanced
...............2C + O2 --> 2CO2 balanced
initial....20 cc + 20 cc.......??
20 cc CO will require 10 cc O2 to react completely so CO is used up (CO is the limiting reagent) and there is an excess of 10 cc O2 remaining. In the process 20 cc CO2 is formed. So the residual gas left is 0 cc CO + 10 cc O2 unreacted + 20 cc CO2 product formed. The total is the sum or 30 cc assuming initial and final states are measured at STP.
Note: I was thrown off initially by Carbon2oxide. Of course that is carbon(II) oxide.