Number of results: 11,765
CHemistry
When O2 reacts with C2H6, according to the equation: 2 C2H6 + 7 O2 = 4 CO2 + 6 H2O, how much CO2 is produced from 60.0 g of C2H6?
Wednesday, December 7, 2011 at 9:59pm by Anonymous
Chemistry
1. Write the balanced chemical equation for the reaction: 2C2H6 + 7O2 = 4CO2 + 6H2O 2. Determine moles C2H6 and O2. moles C2H6 = 20.0 grams C2H6 x (1 mole C2H6/30.0692 grams C2H6) = 0.665 moles C2H6 moles O2 = 60.0 grams O2 x (1 mole O2/32 grams O2) = 1.875 moles O2 3. ...
Thursday, March 14, 2013 at 4:53pm by pls help
CHEMISTRY: URGENT
****There's something you should know though...I wrote the reaction like how you did. (CH4+ C2H6) + 2O2 ==> CO2 + H2O and my teacher said H2O is not part of the residual gases. She said H2O should be replaced with O2. (CH4+ C2H6) + 2O2 ==> CO2 + O2 ****
Monday, October 29, 2012 at 10:48pm by LC
chemistry
im doing ethene so it is -84.0. Howe do i spilt the two up? the second question confuses me and im completely frazled about what to do. C2H6(g) + 3O2(g) = 2CO2(g) + 2H2O(g) =(2mol CO2 x -393.5kJ/1 mol CO2 + 2mol H2O x -241.8kJ/ 1 mol H2O) - (1mol C2H6 x -84.0/ 1 mol C2H6 + ...
Tuesday, January 8, 2013 at 2:53pm by shyanne
Chemistry
A. Write and balance the equation. 2C2H6 + 7O2 ==> 4CO2 + 6H2O 2.2 moles C2H6 x (7 moles O2/2 moles C2H6) = ??moles O2. B. I gave you the link for solving this problem earlier. You may not know what product is being discussed; you can calculate percent composition ...
Monday, May 9, 2011 at 1:42pm by DrBob222
Chemistry Honors
I need help balancing equations 1) CH4+O2-->CO2-->+H2O 2) Hf+N2-->Hf3N4 3) Mg+H2SO4-->MgSO4+H2 4) C2H6+O2 -->CO2+H2O 5) Pb(NO3)2 + NaI--> PbI2+NaNO3 6) Fe+O2-->Fe3O4
Wednesday, October 20, 2010 at 8:25pm by S
chemistry
ok i got to (2mol CO2 x -393.5kJ/i mol CO2 + 2mol H2O x -241.8kJ/ 1 mol H2O) - (1mol C2H6 x -94.0/ 1 mol C2H6 + 3mol O2 x 0kJ/ 1 mol O2) = (-1270.6kJ0 - (-84.0) = -1186.6kJ is this right? and how do i do the second part about expressing the enthalpy of reaction calculated in ...
Tuesday, January 8, 2013 at 2:53pm by shyanne
Chem balancing equation
C5H602 + O2 ---> CO2+H2O start with C C5H602 + ? O2 ---> 5 CO2+ ? H2O now H C5H602 + ? O2 ---> 5 CO2+ 3 H2O 10 + 3 = 13 O on right so need 11 O from O2 so C5H602 + 5.5 O2 ---> 5 CO2+ 3 H2O so double everything to get rid of fraction 2C5H602 + 11 O2...
Wednesday, June 29, 2011 at 6:23pm by Damon
Chemistry (URGENT)
Balance the following equations. 3. C12H22O11 + O2 = CO2 + H2O Answer: C12H22O11 + 12 O2 = 12 CO2 + 11 H2O 8. CH3OH + O2 = CO2 + H2O Answer: 2 CH3OH + 3 O2 = 2 CO2 + 4 H2O I balanced all the others just fine. But I seem to be having trouble with these two. Can someone show me ...
Monday, March 1, 2010 at 3:27am by John
Chemistry
If 5.27 mol of ethane (C2H6) undergo combus-tion according to the unbalanced equation C2H6 + O2 −! CO2 + H2O, how much oxygen is required? Answer in units of mol. Thanks!
Monday, January 18, 2010 at 9:36pm by Randy
CHEMISTRY: URGENT
Here are the equations and some explanation. CH4 + 2O2 ==> CO2 + H2O 2C2H6 + 7O2 ==> 4CO2 + 6H2O -------------------------- The first equation is x + y = 30 Here is how you get the second equation. x cc CH4 gives x cc CO2 x cc CH4 USES 2x O2. y cc C2H6 gives 2y ...
Monday, October 29, 2012 at 10:48pm by DrBob222
chemistry
Methane is CH4 and is oxidized as follows: CH4 + O2 ==> CO2 + H2O (not balanced). C2H5OH + O2 ==> CO2 + H2O (unbalanced). C6H12O6 + O2 ==> CO2 + H2O (unbalanced). You can see that methane, ethanol, and glucose are oxidized to their end products of CO2 and ...
Wednesday, August 4, 2010 at 3:40pm by DrBob222
chemistry
balance the equation:C2H6 + O2 = CO2 + H2O
Monday, September 12, 2011 at 10:07am by christiana
Chemistry
You can take a short cut when dealing with all gases. The short cut is that you can deal directly with volume and not convert to mols. But to complicate matters this is a limiting reagent problem. First convert L ethane to L CO2. L CO2 = 15.9 L C2H6 x ( 4 mols CO2/2 mols C2H6...
Tuesday, November 6, 2012 at 2:04pm by DrBob222
chemistry(balance equation)
C2H6 + O2 --> CO2 = H2O
Thursday, January 19, 2012 at 9:54pm by adriana
chemistry
1)How many milliliters of 1.5 M NaOH will react completely with 448 mL of 0.600 M HCl? NaOH (aq) + HCl (aq) ¨ NaCl (aq) + H2O (l) 2)What is the percent yield of the following reaction if 15 g H2O are obtained from the combustion of 18 g C2H6? 2 C2H6 (g) + 7 O2 (g) ...
Sunday, October 24, 2010 at 5:24pm by Chicka
Chemistry
When 20.0 g C2H6 and 60.0 g O2 react to form CO2 and H2O, how many grams of water are formed?
Thursday, March 14, 2013 at 4:53pm by pls help
Chem
When 20.0 g C2H6 and 60.0 g O2 react to form CO2 and H2O, how many grams of water are formed?
Thursday, March 14, 2013 at 4:06pm by Jake
College Chemistry
When 20.0 g C2H6 and 60.0 g O2 react to form CO2 and H2O, how many grams of water are formed?
Thursday, November 4, 2010 at 12:21pm by Jake
Chemistry
Start with the chemical equations of the complete combustion of CH4 and C2H6, CH4 + mO2 -> CO2 + 2H2O ....(1) C2H6 + nO2 -> 2CO2 + 3H2O ....(2) Calculate the total mass of CO2+H2O produced if all 13.43g of gas were CH4. Do the same for C2H6. Find the ratio of ...
Friday, August 27, 2010 at 8:14pm by MathMate
Chemistry II
The enthalpies of combustion are determined by these equations: C4H4(g) + 5 O2(g) ---> 4 CO2(g) + 2 H2O(g) : ÄH = -2341 kJ/mol 2 H2(g) + O2(g) ---> 2 H2O(g) : ÄH = -286 kJ/mol C4H8(g) + 6 O2(g) ---> 4 CO2(g) + 4 H2O(g) : ÄH = -2755 kJ/mol ...
Sunday, May 20, 2007 at 6:52pm by philisile
phiscal science semester 2
For the reaction C2H6+O2>CO2+H2O what are the coefficient to the chemical substance it goes with for balanced reactions?
Monday, November 28, 2011 at 9:09pm by bailey
Science/Chemistry
Write a Balanced equation for the chemcial reaction Acetylene gas (C2H2) burns in a welding torch with oxygen to form carbon dioxide gas and water vapor. C2H2(g) + O2(g) ==> CO2(g) + H2O(g) It isn't balanced. I will leave that for you. How do i balance it? trial and...
Thursday, March 15, 2007 at 8:33pm by Chris
chemistry
C2H6 + O2 -> CO2 + H2O How many g of carbon dioxide are produced at the same time as 360g of water vapor in the burning of ethane
Sunday, March 3, 2013 at 4:52pm by stephen
general chemistry
CnHm + O2 → CO2 + H2O 4.04g of CO2*(1 mole of CO2/44.01g of CO2)=moles of CO2=0.0913g of CO2 1 mole of CO2=1 mole C, moles of CO2=moles of C 1.24 g of H20 *(1mole of H20/18 g of H20)=moles of H20=0.689 1 mole of H20=2 moles of H 2*moles of H20= moles of H=0.1376 ...
Wednesday, February 6, 2013 at 3:44am by Devron
Chemistry Pretest
11. How many moles of CO2 would be produced from 56 moles of O2 according to the following balanced equation? 2 C2H6 + 7 O2 ---> 4 CO2 = 6 H20 a) 16 b) 32 c) 224 d) 48 e) 8
Friday, September 28, 2012 at 6:52am by Sarah
physics
Which of these are balenced? 2 C4H10( g) + 13 O2( g)h8 CO2( g) + 10 H2O(l) 4 C6H7N5O16(s) + 19 O2( g)h24 CO2( g) + 20 NO2( g) + 14 H2O(g) I dont understand this anyhelp would be greatly appreciated.
Friday, November 9, 2012 at 9:58pm by Sue L
Science
268.8 L is 12 moles at STP of O2. Write the balanced reaction for metabolizing sucrose to CO2 and H2O. C12H22O11 + 12 O2 = 12 CO2 + 11 H2O 12 moles of O2 produce an equal number of moles (and an equal volume) of CO2.
Thursday, May 26, 2011 at 2:17am by drwls
chemistry
Balance each of the following equations a)CH4+CL2......>CCl4+HCl b)AL(OH)3+H2SO4.....>Al2(SO4)3+H2O c)Fe+H2O......>fe3O4+H2 d)Al4C3+HCl......>AlCl3+CH4 e)C2H6+O2......>CO2+H2O f)P2H4.......>PH3+P4 g)S2Cl2+NH3......>N4S4+NH4CL+S8...
Sunday, April 15, 2012 at 3:41pm by faisal
Chemistry
What is the chemical equation for the combustion reaction between methanol and air? CH4 + O2 ==> CO2 + H2O. All hydrocarbons produce CO2 and H2O when they are combusted in air. The above equation isn't balanced. I assume you can do that? If not, ask OR take a shot ...
Thursday, January 18, 2007 at 10:28pm by Raj
ap chemistry
Which of the following reactions as written corresponds to a standard formation reaction? 1. 2H (g) + O2(g) ! H2O2 (`) 2. Na(s) + 1 2 Cl2(g) ! NaCl(s) 3. CO2(s) ! CO2(g) 4. SO2(g) + 1 2 O2(g) ! SO3(g) 5. 2 H2(g) + O2(g) ! 2 H2O(`)
Wednesday, October 31, 2012 at 5:43pm by cheri
chemistry
C2H6(g) + O2(g) ==> CO2(g) + H2O(g) You balance. Ba(s) + Cl2(g) ==> BaCl2(s) You balance.
Tuesday, April 3, 2012 at 3:00pm by DrBob222
Chemistry
the products are CO2 + H2O C57 h110 O6 + O2 >> 57 CO2 + 55 H2O now to find the O2: on the right, we have 114+55 O=169O or 84.5 O2 C57 h110 O6 + 84.5O2 >> 57 CO2 + 55 H2O Now since small minds cannot comprehend non whole numbers in balanced equations...
Tuesday, January 22, 2013 at 6:09pm by bobpursley
Chemistry
A mixture of methane (CH4) and ethane (C2H6) of mass 13.43g is completely burned in oxygen. If the total mass of CO2 and H2O produced is 64.84 g, calculate the fraction of CH4 in the mixture. CH4 + C2H6 arrow CO2 + H2O 13.43g 64.84g Would I do 13.43g/16.04g CH4 ?
Friday, August 27, 2010 at 8:14pm by Amy~
Chemistry
The combustion of ethane: 2 C2H6 (g) + 7 O2 (g) ---> 4 CO2 (g) + 6 H2O (g) At teh same temperature and pressure, what is the maximum volume in liters of carbon dioxide that can be obtained from 15.9 L of ethane and 52.3 L of oxygen?
Tuesday, November 6, 2012 at 2:04pm by Helpless
chemistry
I need help with a,b,and c. I tried to balance it but im having a little trouble Ethane gas, C2H6, burns in air and produces carbon dioxide and water vapor. a)write a balanced equation for this reaction. I know this isnt balanced but is this what im working with? C2H6 + O ---&...
Sunday, March 25, 2007 at 5:15pm by beth25
science; AP Chem
For #1, P1V1 = P2V2 For #2, C2H4 + 3O2 ==> 2CO2 +2H2O 3.2L...8.6L....0.....0 3.2L C2H4 will form 2*3.2 = 6.4L CO2 if it has all of the O2 needed. 8.6L O2 will form 8.6 x (2 mols CO2/3 mols O2) = 5.73 mols CO2 if it has all of the C2H4 needed. Therefore, O2 is the ...
Friday, September 14, 2012 at 2:39pm by DrBob222
Chem.
Not much to go on here. Are these 'real' questions or something to satisfy your curiosity? gasoline==> CO2 + H2O H2O(l) ==> H2O(g) 2H2O ==> 2H2 + O2 NaHCO3 + HC2H3O2 ==> NaC2H3O2 + CO2 + H2O
Tuesday, March 12, 2013 at 5:54pm by DrBob222
Chemistry
A sample of natural gas is 80.0% CH4 and 20.0% C2H6 by mass. What is the heat from the combustion of 1.00 g of this mixture? Assume the products are CO2 and H2O. CH4 = -74.87 and C2H6 = -84.68
Thursday, November 1, 2007 at 9:18pm by Lauren
re-apchem post
Yes and no. You add the moles CO2 to moles H2O and use that for n but there should be no CH4 or O2 remaining if all of the CH4 and O2 have reacted. Moles H2O will be twice that of CO2.
Sunday, April 12, 2009 at 8:51pm by DrBob222
chemistry
CxHy + O2 ==> CO2 + H2O If it forms 8L CO2 and 9L H2O, the ratio of C/H must be 8/(2*9) or 8/18
Friday, September 24, 2010 at 7:44pm by DrBob222
science
Check all this work. Check my thinking. C3H8 + 5O2 ==> 3CO2 + 4H2O 2C2H6 + 7O2 ==> 4CO2 + 6H2O Ratio propane is 1 mol C3H8 to 3 mols CO2. Ratio ethane is 1 mol C2H6 to 2 mols CO2. The total mols CO2 produced is 5 mols; therefore, 3/5 x total mols = mols CO2 from ...
Monday, October 6, 2008 at 11:14pm by DrBob222
college chem
Kp = p(CO2)^2/p(CO)^2*p(O2) Make an ICE chart. initial: CO2 = 2 P2 = 1.5 CO2 = 0 change: CO2 = 2x O2 = -x CO = -2x equilibrium: CO2 = +x CO = 2-2x O2 = 1.5-x Substitute into the Kp exression and solve for x. 2x will be CO2 2-2x will be CO 1.5-x will be O2
Friday, February 26, 2010 at 5:11pm by DrBob222
chemistry
Benzene is a hydrocarbon, C6H6 Hydrocarbons combust with oxygen to produce CO2 and H2O C6H6 + O2 ==> CO2 + H2O Balance by trial and error. But you can help the "trial" part by some snooping around. For example, I look at C6H6 so I know that must produce 6CO2 ...
Thursday, December 13, 2012 at 9:16pm by DrBob222
Chem
1/2 eqn b. 2H2 + O2 ==> 2H2O becomes H2 + 1/2 O2 ==> H2O reverse eqn A. H2O2 ==> H2O + 1/2 O2 becomes H2O + 1/2 O2 ==> H2O2 .....H2 + 1/2 O2 ==>H20 +....H2O + 1/2O2 ==> H2O2 ------------------------------ H2 + 1/2 O2 + H2O + 1/2 O2 &...
Tuesday, July 12, 2011 at 10:58pm by DrBob222
chemistry 1
When butane undergoes complete combustion , the products are CO2 and H2O C4H10(g) + O2(g)-> CO2(g) + H2O(g) What is the value of the coefficient for oxygen when this equation is balanced
Sunday, March 7, 2010 at 9:39pm by jeanette
Chemistry
Convert 1.73g CO2 to mols. 1.73 x (1 mol/22.4L) = ? mols CO2. Using the coefficients in the balanced equation, convert mols CO2 to mols O2. ?mols CO2 x (6 mols O2/4 mols CO2) = ? mol CO2 x 6/4 = xx mol O2. Now convert xx mols O2 to grams. g O2 = mols O2 x molar mass O2 = zz.
Monday, April 16, 2012 at 9:33pm by DrBob222
chemistry
Well, you need for Balanced Writing about Combustion of Benzene. Since Benzene is an Aromatic Hydrocarbon, YOU ARE ATTENDING ITS MOLECULES CONTAIN CARBON- AND HYDROGEN-ATOMs, no more species. Now, YOU MAY STATE ITS CHEMICAL PRODUCTs HAVE TO RESULT CARBON DIOXIDE (e.g. CO2) AND...
Thursday, December 13, 2012 at 9:16pm by kazz
chemistry
2C2H6 + 7O2 ==> 4CO2 + 6H2O mols C2H6 = grams/molar mass mols O2 = grams/molar mass. Using the coefficients in the balanced equation convert mols C2H6 to mols CO2. Do the same for mols O2. It is likely that these two values will not agree which means one of them is ...
Thursday, April 18, 2013 at 9:29pm by DrBob222
Chemistry
Given the following heats of combustion. CH3OH(l) + 3/2 O2(g) CO2(g) + 2 H2O(l) ΔH°rxn = -726.4 kJ C(graphite) + O2(g) CO2(g) ΔH°rxn = -393.5 kJ H2(g) + 1/2 O2(g) H2O(l) ΔH°rxn = -285.8 kJ Calculate the enthalpy of formation of methanol (...
Sunday, September 18, 2011 at 4:59pm by Ellie
Chemistry
write a balanced equation for the combustion of benzene. All hydrocarbons, like benzene are, are the same. Add O2. C goes to CO2 and H goes to H2O. C6H6 + O2 ==> CO2 + H2O I will let you balance it. Let me know if you have a problem with it. would it be... C6H6 + 14O2...
Monday, August 6, 2007 at 9:16pm by Anonymous
chemistry
The idea is to use an isotope of O or make O radioactive and use that to produce CO2 or H2O (that is make O different so you can find it). Then (if you made O radioactive) measure the glucose and the O2 and see if the O2 is radioactive or if the glucose is radioactive. Let'...
Monday, April 15, 2013 at 12:04am by DrBob222
chemistry
3. When a mixture of 10.0 grams of acetylene (C2H2) and 10.0 grams of oxygen (O2) is ignited, the resulting combustion reaction produces CO2 and H2O. A) Write a balanced equation for this reaction. B) What is the limiting reactant? C) How many grams of C2, H2, O2, CO2, and H2O...
Tuesday, May 14, 2013 at 3:47pm by tra
Chemistry
Check my thinking on this. CxHy + O2 ==> CO2 + H2O CxHy = 0.20 mol CO2 = 0.80 mol H2O = 1.0 mol Convert 0.20 mol CxHy to 1.0 mol by multiplying by 5. Therefore, we should get 5 x 0.80 mol CO2 (4.0 mols) and 5 x 1.0 mol H2O (5.0 mols). The equation must be something like...
Monday, September 29, 2008 at 10:38pm by DrBob222
Chemistry
Calculate the enthalpy (ΔHo) of reaction (kJ) for the equation as written. If the answer is negative, enter the sign and then the magnitude. 2 HCOOH(l) + O2(g) → 2 CO2(g) + 2 H2O(l) . ΔHof (kJ/mol) HCOOH(l) -409 O2(g) 0 CO2(g) -393.5 H2O(l) -285.83 ...
Friday, May 20, 2011 at 8:47pm by ChemGeek
Chemistry
For which reaction is delta Ssys > 0? A) CH4(g) + 2 O2(g) ¨ CO2(g) + 2 H2O(l) B) NH3(g) + HCl(g) ¨ NH4Cl(s) C) 2 NH4NO3(s) ¨ 2 N2(g) + O2(g) + 4 H2O(g) D) HCl(aq) + NaOH(aq) ¨ NaCl(aq) + H2O(l)
Monday, July 30, 2012 at 1:45pm by Taylor
CHEMISTRY
. For which reaction is ´Ssys ® 0? A) CH4(g) + 2 O2(g) ¡÷ CO2(g) + 2 H2O(l) B) NH3(g) + HCl(g) ¡÷ NH4Cl(s) C) 2 NH4NO3(s) ¡÷ 2 N2(g) + O2(g) + 4 H2O(g) D) HCl(aq) + NaOH(aq) ¡÷ NaCl(aq) + H2O(l)
Wednesday, August 1, 2012 at 7:15pm by MONICA
chemistry need help asap!!!!!!
can you balacne theses Ag2O -> Ag + O2 C6H6 +O2 -> CO2 + H2O Al2O3 + C -> Al + CO2
Sunday, February 8, 2009 at 6:13pm by Peter
chemistry
Given the following reaction: 4 KO2 + 2 H2O + 4 CO2 ==> 4 KHCO3 + 3 O2 How many moles of O2 will be produced if 2.46 moles of CO2 react completely? moles
Tuesday, January 20, 2009 at 6:38pm by bob
Chemistry
a)HCl + NaHCO3 -> NaCl + H2O + CO2 This is fine b)2HCl + CaCO3 -> CaCl2 + H2CO3 -> CaCl2 + H2O + CO2 OK also c) Al2O3 + HCl -> AlCl3 + H2O + O2 very few reactions yield O2 3HCl + Al2O3 ---> 2AlCl3 + 3H2O a) 1 mole - agreed b) 2 moles - agreed...
Thursday, December 9, 2010 at 9:04am by Dr Russ
CHEMISTRY: URGENT
Lol when you explain it. Not when my teacher teaches me, I never understand a word she says. Anyways thanks alot for staying up to help me. There's something yo should know though...I wrote the reaction like how you did. CH4 + 2O2 ==> CO2 + H2O and my teacher said ...
Monday, October 29, 2012 at 10:48pm by LC
chemistry
use thermochemical equations shown below to determine enthalpy for the reaction: H2CO3-->H2O+CO2 1) H2CO3 --> H2CO + O2 H; 224 KJ 2)H2CO + O2 --> H2O + CO2 H; -100KJ I know this problem is one that you have to rewrite the equations to get the equation in ...
Friday, November 20, 2009 at 3:05pm by Brittany
chemistry
use thermochemical equations shown below to determine enthalpy for the reaction: H2CO3-->H2O+CO2 1) H2CO3 --> H2CO + O2 H; 224 KJ 2)H2CO + O2 --> H2O + CO2 H; -100KJ I know this problem is one that you have to rewrite the equations to get the equation in ...
Friday, November 20, 2009 at 3:05pm by Brittany
CHEMISTRY
Given the following heats of combustion. CH3OH(l) + 3/2 O2(g) -> CO2(g) + 2 H2O(l) ΔH°rxn = -726.4 kJ C(graphite) + O2(g) ->CO2(g) ΔH°rxn = -393.5 kJ H2(g) + 1/2 O2(g) -> H2O(l) ΔH°rxn = -285.8 kJ Calculate the ...
Monday, September 22, 2008 at 8:13pm by HANNAH
Chemistry 2
A mixture containing KCLO3, K2CO3, KHCO3, and KCL was heated, producing CO2, O2, and H2O (water) gases according following equations: 2KCLO3 -> 2KCL + O2 2KHCO3 -> K2O + H2O + 2CO2 2CO3 -> K2O + CO2 The KCL does not reacnder the conditions of the reaction...
Thursday, September 13, 2007 at 6:22pm by Pat
chemistry
Thus, oxygen must the the limiting reagent. C + O2 ==> CO2 78.0 g O2 to start remaining is 10.8; therefore, 78.0-10.8 = 67.2 g oxygen consumed. That is 67.2/32 = ?moles. ?mols O2 x (1 mole CO2/1 mole O2) = ?moles CO2. grams CO2 = moles CO2 x molar mass CO2.
Wednesday, September 7, 2011 at 12:17pm by DrBob222
chemistry
2CO2(G)--->2CO(g)+O2(g), deltaH=566kj what is Kc and state whether the reaction favors products or reactants? A.)[CO2]=1.5M, [CO]=1.2M, [O2]=0.05M B.)[CO2]=8.3M, [CO]=0.05M, [O2]=0.50M C.)[CO2]=0.05M, [CO]=0.75M, [O2]=0.07M
Tuesday, February 28, 2012 at 6:52pm by Mandy
chem, balance
Gaseous CO2 decomposes to form the gases CO and O2. Will it be CO2--> CO+O2 or CO+O2-->CO2? I know the solution above isn't balanced yet. I just have add the 2 behind CO2 and CO to make it balanced.
Sunday, March 1, 2009 at 7:56pm by Anonymous
Chemistry
The equation is (note no lower case letters used) 2C3H6 + 9O2 ==> 6CO2 + 6H2O Convert L C3H6 to L CO2. 75.5L x (6 mols CO2/2 moles C3H6) = 226.5 L CO2. Convert 95.5 L O2 to L CO2. 95.5 x (6 moles CO2/9 moles O2) = 63.7 L CO2. In limiting reagent problems, the smaller ...
Monday, March 14, 2011 at 8:51pm by DrBob222
Chem 2
A mixture containing KCLO3, K2CO3, KHCO3, and KCL was heated, producing CO2, O2, and H2O (water) gases according to the following equations: 2KCLO3 -> 2KCL + O2 2KHCO3 -> K2O + H2O + 2CO2 K2CO3 -> K2O + CO2 The KCL does not reacnder the conditions of the ...
Thursday, September 13, 2007 at 6:32pm by Pat
chemistry
Gasahol is a fuel containing ethanol(C2H6O) that burns in oxygen (O2)to give carbon dioxide and water. a)How many moles of O2 are needed to completely react with 4.0 moles of C2H60? b) If a car produces 88g of CO2,how many grams of O2 are used up in the reaction? c)If you add ...
Thursday, March 17, 2011 at 3:39pm by Connie
chemistry
calculate the yield of CO2 if 30.g of C2H6 reacts with 14.0g of O2. Show work
Thursday, April 18, 2013 at 9:29pm by liz
Chemistry
The combustion products for hydrocarbons and oxygenated hydrocarbons are CO2 and H2O. Then you balance from there. Try it. It's relatively easy. So you want C4H8O + O2 ==> CO2 + H2O. Then balance.
Sunday, July 11, 2010 at 2:18pm by DrBob222
Chemistry
a mixture of methane CH4 and ethane C2H6 is stored in a container at 294 mmHg. The gases are burned in air to form CO2 and H2O. If the pressure of CO2 is 346mmHg at the same temp and volume as the original mixture, calculate the ratio of moles of CO2 produced to moles of the ...
Tuesday, March 29, 2011 at 10:40pm by Carolyn
Chemistry
a mixture of methane CH4 and ethane C2H6 is stored in a container at 294 mmHg. The gases are burned in air to form CO2 and H2O. If the pressure of CO2 is 346mmHg at the same temp and volume as the original mixture, calculate the ratio of moles of CO2 produced to moles of the ...
Tuesday, March 29, 2011 at 10:38pm by Carolyn
Chemistry
a)HCl + NaHCO3 -> NaCl + H2O + CO2 b)2HCl + CaCO3 -> CaCl2 + H2CO3 -> CaCl2 + H2O + CO2 c) Al2O3 + HCl -> AlCl3 + H2O + O2 hmmm a) 1mole b) 2moles 3) 1 ??
Thursday, December 9, 2010 at 9:04am by prince
chemistry
2CO2(G)--->2CO(g)+O2(g), deltaH=566kj what is Kc and state whether the reaction favors products or reactants? A.)[CO2]=1.5M, [CO]=1.2M, [O2]=0.05M B.)[CO2]=8.3M, [CO]=0.05M, [O2]=0.50M C.)[CO2]=0.05M, [CO]=0.75M, [O2]=0.07M any work would be much appreciated!!!thank you
Friday, March 2, 2012 at 6:50pm by Mckayla
Chemistry+balancing equation tips
Most combustion reactions are small numbers. C4H9 + O2 --> CO2 + H2O I see the H9 on the left and H2 on the right and I know I have a problem right off the bat because there is no whole number I can multiply by to get from 2 to 9. So right off the bat I multiply C4H9 by...
Thursday, February 19, 2009 at 5:48pm by DrBob222
Chemistry
This is a limiting reagent problem. How do I know that. Because BOTH reactants are given. Basically, what we do is work two simple stoichiometry problems, identify the limiting reagent as the one producing the smaller amount of product. CH4(g) + 2 O2(g) => CO2(g) + 2 ...
Monday, November 29, 2010 at 11:41pm by DrBob222
Chemistry
How many moles of H2O (g) are produced when 4.3 grams O2 (g) are consumed? C4H6+O2-->CO2+H2O My try at balance is: C4H6+4O2+3/2O2-->4CO2+3H2O
Friday, September 9, 2011 at 10:03pm by Aha
Chemistry
The combustion reaction of acetylene gas is represented by this equation: 2 C2H2(g) + 5 O2(g) ==> 4 CO2(g) + 2 H2O(g) How many grams of CO2 and grams of H2O are produced when 52.0g C2H2 burns in oxygen?
Monday, March 22, 2010 at 7:26pm by Ralph
AP Chemistry
For the reaction ? C6H6 + ? O2 ↽⇀? CO2 + ? H2O a maximum of ? moles of CO2 could be formed from 9 mol of C6H6 and 2.81 mol of O2. Answer in units of mol
Wednesday, September 19, 2012 at 8:34pm by Matt
AP Chemistry
For the reaction ? C6H6 + ? O2 ↽⇀? CO2 + ? H2O a maximum of ? moles of CO2 could be formed from 6.38 mol of C6H6 and 6.03 mol of O2. Answer in units of mol
Tuesday, September 4, 2012 at 10:14pm by Rafael
AP Chemistry
For the reaction ? C6H6 + ? O2 ↽⇀? CO2 + ? H2O a maximum of ? moles of CO2 could be formed from 6.38 mol of C6H6 and 6.03 mol of O2. Answer in units of mol
Tuesday, September 4, 2012 at 10:01pm by Rafael
Chem balancing equation
C5H602+O2 ---> CO2+H2O what is the coefficient of O2?
Wednesday, June 29, 2011 at 6:23pm by Lily
Chemistry
a. 16L C2H6 x (4 mols CO2/2 mols C2H6) = ? mols CO2. b and c are done the same way. d. 1416 kJ/mol x [(16 L) x (1 mol/22.4L)]
Sunday, December 16, 2012 at 12:18am by DrBob222
AP CHEMISTRY
Here are some rules that helped me as I went through school. None of the equations are balanced. These look better if you place them on a sheet of paper with arrows but I can't do that on this forum. Something like this: .................Elements...
Sunday, May 27, 2012 at 1:35pm by DrBob222
science
we start with: C2H5OH + O2-> CO2 + H2O Think of this as our skeleton. It cannot be changed. Then, list how many there are of each element. This would be how it would look like: C: 2 C: 1 H:6 H: 2 O: 3 O: 3 Now, always do hydrogen and oxygen last, so we have to do C ...
Sunday, February 6, 2011 at 4:43pm by Anonymous
Genera Chemistry
Balance the following equations: a. C + O2 CO b. CO + O2 CO2 c. H2 + Br2 HBr d. K + H2O KOH + H2 e. Mg + O2 MgO please explain and show work.
Monday, May 24, 2010 at 5:15pm by Kendra
General Chemistry
Balance the following equations: a. C + O2 CO b. CO + O2 CO2 c. H2 + Br2 HBr d. K + H2O KOH + H2 e. Mg + O2 MgO please explain and show work.
Monday, May 24, 2010 at 2:28pm by Kendra
chemistry
Give the percent yield when 15.9 g of CO2 are formed from the reaction of 4.000 moles of C8H18 with 4.000 moles of O2. 2 C8H18 + 25 O2 -> 16 CO2 + 18 H2O
Sunday, February 28, 2010 at 8:48pm by candace
Chemistry
Calculate the energy changes associated with each of the following reactions. Label each as endothermic or exothermic. A.) 2(C2H2)+5(O2)------->4(CO2)+2(H2O) B.) N2+O2------>2(NO) C.) NH3+H2O----->NH4OH D.) 2(BrCl)----->Br2+Cl2
Monday, December 6, 2010 at 1:19pm by Jake
Chemistry
You are oxidizing (burning) the wax. The C is oxidized to CO2 and the H is oxidized to H2O. C20H42 + O2 ==> CO2 + H2O. I'll leave it for you to balance. The word equation is paraffin wax added to oxygen yields carbon dioxide plus water.
Tuesday, April 21, 2009 at 10:49pm by DrBob222
Chemistry
2C2H6+7O2=4CO2+6H2O how many moles of H2O are produced when a mixture of 0.427 moles of O2 and 0.150 moles of C2H6 is burned, iv already found moles of H2O for them separately.
Sunday, March 17, 2013 at 3:21pm by Angela
Chemistry
For the reaction: C4H10 + O2 ¨ CO2 + H2O ( is this balanced?) , how many moles of CO2 is formed when 5.00 moles C4H10 reacts with O2? A. 5.00 B. 1.25 C. 20.0
Saturday, March 5, 2011 at 5:05pm by Ivy
Physics
For the reaction: C4H10 + O2 ¨ CO2 + H2O ( is this balanced?) , how many moles of CO2 is formed when 5.00 moles C4H10 reacts with O2? A. 5.00 B. 1.25 C. 20.0
Saturday, March 5, 2011 at 2:03am by jake
CHEM! (SCIENCE) NEED HELP
24 moles of CO2 *(2 moles of C2H6/4 moles of CO2) =12 moles of C2H6
Thursday, January 24, 2013 at 5:56pm by Devron
chemistry
#1 you balanced correctly. 2. C4H10+O2>CO2+H20 balanced: C4H10+O2>2CO2+5H20 #2 is not right. You can tell if the equations are balanced or not by simply checking them. I see 4 C on the left and only 2 on the right so it isn't correct right off the bat. Here ...
Tuesday, February 19, 2008 at 8:48pm by DrBob222
chemistry
This is a limiting reagent problem. I know that because amounts are given for BOTH reactants. CH4 + 2O2 ==> CO2 + 2H2O Convert 8.00g CH4 to mols. mol = grams/molar mass = about 0.500 g but you should confirm that as well as all of the other numbers. I estimate as I go ...
Monday, November 12, 2012 at 11:28pm by DrBob222
chemistry PLEASE HELPPPP
First CO2 10 grams CO2 is how many moles? C = 12 O2 = 32 CO2 = 44 grams per mole so n of CO2 = 10/44 = .227 moles P V = n R T P of CO2 = .227 R ( T/V) NOW O2 20 grams O2 32 grams / mole so 20/32 = .625 moles O2 P of O2 = .625 R (T/V) add P of CO2 to P of O2 to get total pressure
Tuesday, March 18, 2008 at 8:21pm by Damon
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