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September 17, 2014

Search: How many moles of carbon dioxide will be formed from 8.0g of methane?

Number of results: 10,185

10th grade chemistry
I need help on solving: How many grams of water are obtained if 487.8 grams of carbon dioxide are formed?
February 15, 2010 by Janet

chemistry.
Lithium hydroxide reacts with carbon dioxide as follow. 2LiOH + CO2________ Li2CO3 + H2O What mass (in grams) of Lithium hydroxide is need to react with 11 g of carbon dioxide?
September 28, 2009 by Richard

Science
Trees will most likely compete with one another for- A.carbon dioxide B.soil C.water D.oxygen I know trees take in carbon dioxide and release oxygen. But im not sure which is the answer. Is it C?
April 19, 2012 by Jerald

Shelled marine organisms
How do the shelled marine organisms contribute to the carbon cycle? They contribute to the carbon cycle by releasing carbon dioxide back into the atmosphere by converting carbohydrates and oxygen into carbon dioxide and water.
July 6, 2010 by Amanda

chemistry
How many Lister of Carbon Dioxide gas measured at STP can be produced by the decomposition of 15.0g of Sodium Bicarbonate to give Sodium Carbonate, water, and Carbon Dioxide gas?
May 24, 2011 by mel <3

SMK Duma
how to calculate ? when 21g of magnesium carbonate was heated , magnesium oxide produced . carbon dioxide also released. what is the volume of carbon dioxide released ?
June 5, 2012 by Nurlisa

Science
A group of trees are on a hillside The trees will most likely compete with one another for- A.carbon dioxide B.soil C.water D.oxygen I think it's C I know that plants take in carbon dioxide and give out oxygen
April 19, 2012 by Jerald

chem
How many moles of carbon are needed to react with 525 g of hematite 2FeO3+6C->4Fe+3Co2 idk how to convert moles of fe2o3 to carbon
September 29, 2013 by Julie

chemistry
The enthalpy of combustion of carbon to carbon dioxide is -394 kJ according to the equation: C (s) + O2 (g) --> CO2 (g) How many kJ of heat are released when 24.0 g of carbon are burned in an excess of oxygen
June 11, 2011 by lo

chemistry
A 211 g sample of barium carbonate, BaCO3, reacts with a solution of nitric acid to give bar- ium nitrate, carbon dioxide and water. If the acid is present in excess, what mass and volume of dry carbon dioxide gas at STP will be produced
May 14, 2013 by myrtle

Chemistry , please !
when 21g of magnesium carbonate was heated , magnesium oxide produced . carbon dioxide also released. what is the volume of carbon dioxide released ?
June 5, 2012 by Ikram

chem
Elemental Sulfur can be formed through the combustion of Hydrogen Sulfide (found in Methane gas) give in equation H2 S +O--->S + H2 4 tell how much sulfur is made from 250 grams of methane
February 9, 2010 by nycole

chemistry
write and balance Solid aluminum carbonate decomposes to form solid aluminum oxide and carbon dioxide and carbon dioxide gas
March 27, 2013 by tamara

Chemistry
Based on the balance equation 2C6H14+19O2 gives 12CO2+14H2O calculate the moles of CO2 formed when G moles of H2O formed
February 18, 2008 by Anonymous

CHemistry
Butane, , is a component of natural gas that is used as fuel for cigarette lighters.At 1.00 and 23 , how many liters of carbon dioxide are formed by the combustion of 1.00 of butane?
September 21, 2008 by George

chemistry
elemental sulfur can bea formed through the combustion of hydrogen sulfide (found in methane gas) carve in equation; H2 S +O2----S + H2 4 tell how much sulfur is made from 250 grams of methane
February 9, 2010 by nycole

chemistry
Consider the following unbalanced reaction: Fe2O3 (s) + CO (g) --> Fe (s) + CO2 (g) How many moles of carbon dioxide are produced per mole of iron (III) oxide reacted.
September 20, 2011 by Jack

Chemistry Help!
If 100 grams of KClO3 are heated to form KCl and O2 according to the equation KClO3 KCl + O2 (Hint: You need to balance the equation) a. How many moles of KClO3 reacted? b. How many moles of KCl are formed? c. How many grams of KCl are formed? d. how many moles of O2 are ...
February 12, 2013 by Allison

CHemiStry!
Select all ionic compounds in which the number of anions present is two. carbon dioxide X manganese(II) hydroxide mercury(II) carbonate X mercury(II) phosphate ammonia sulfur dioxide Hello, I know manganese(II) hydroxide mercury(II) phosphate both have two anions, however I am...
May 7, 2010 by ChEm

science
A scientist collects a sample of carbon dioxide that contains 25 moles of CO2. In grams, what is the mass of the sample?
December 20, 2012 by cristiano

applying stoichiometry
Propane (C3H8) + oxygen------> carbon dioxide + water how many grams of carbon dioxide are produced from the reaction of 35.2 grams of propane?
February 5, 2012 by danielle

chemistry
1. Calculate the volume of carbon dioxide at 273 K and 1.01 * 10^5 Pa which would be produced when 1.25g of calcium carbonate reacts completely with HCL. and 2. When 41.18 cm^3 of a solution of silver ions with concentration of .2040 mol dm^-3 is added to a solution of XO4 -3 ...
May 19, 2008 by ANn

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 ...
March 17, 2011 by Connie

chemistry 1
When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction How many grams of calcium carbonate are needed to produce 49.0 of carbon dioxide at STP?
May 2, 2010 by safwan hakim

Chemistry
When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas. How many grams of calcium carbonate are needed to produce 81.0 of carbon dioxide at STP? Is the asnwer 80.95
September 21, 2008 by George

chemistry
The combustion of propane is given by the following reaction: C3H8 (g) + 5 O2 (g) ---> 3 CO2 (g) + 4 H2O (g) If 5.00 L of propane are burned in in the presence of excess O2, how many liters of carbon dioxide will be formed?
April 29, 2012 by zarmeen

Chemistry
(a) The total mass of carbon contained in fossil fuels that was burned in the world from 1750 to 2000 was estimated to be 2.9 x E14 kg C. The amound of carbon released as carbon dioxide from agricultural expansion and deforestation over this period is estimated to be 1.3 x E14...
April 13, 2010 by Anonymous

ap chemistry
Carbon monoxide reacts with oxygen to form carbon dioxide by the following reaction: 2CO + O2 yields 2CO2 Delta H for this reaction is -135.28 kcal. If 811.7 kcal is released, how many moles of CO must have reacted? 1). 270.5 mol 2). 40.5 mol 3). 12.0 mol 4). 5.41 mol 5). 16.3...
October 18, 2012 by bob

AP Chemistry
Carbon monoxide reacts with oxygen to form carbon dioxide by the following reaction: 2CO(g) + O2(g) --> 2CO2(g) change in H for this reaction is −135.28 kcal. If 811.7 kcal is released, how many moles of CO must have reacted? 1. 16.3 mol 2. 40.5 mol 3. 12.0 mol 4. 5....
September 29, 2013 by Anonymous

chem
What volume of carbon dioxide gas (at STP) is produced when 1.01 moles of oxygen gas react completely? 2CO + O2 -> 2CO2
November 10, 2013 by Dakota

Chemistry-Please help
When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction CaCO3(s)---->CaO(s)+CO2(g) How many grams of calcium carbonate are needed to produce 59.0L of carbon dioxide at STP?
October 16, 2009 by Rose

chemistry (science)
When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction CaCO3 ---> CaO + CO2 How many grams of calcium carbonate are needed to produce 73.0 of carbon dioxide at STP?
February 15, 2010 by beeni

chemistry
When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction \rm CaCO_3{\it(s)}\rightarrow CaO{\it(s)}+CO_2{\it(g)} How many grams of calcium carbonate are needed to produce 53.0 L of carbon dioxide at STP?
April 30, 2010 by Anonymous

Chemistry 1201
When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction CaCO3(s)->CaO(s)+CO2(g) What is the mass of calcium carbonate needed to produce 53 L of carbon dioxide at STP?
April 15, 2012 by John

Science
Effects of global warming due to methane gases from land fills and animals? Effects of global warming due to carbon dioxide from cars and factories?
April 22, 2012 by Henry

Science
Effects of global warming due to methane gases from land fills and animals? Effects of global warming due to carbon dioxide from cars and factories?
April 22, 2012 by Henry

chemistry, please help!!
The combusion of glucose produces carbon dioxide and water vapor according to the chemical equation below: C6H12O6 (s) + 6O2 (g) ---> 6CO2 (g) + 6H2O (g) DELTA H = -2540 kj Calculate the energ involved in making 75.0 g of glucose from carbon dioxide and liquid water (...
March 28, 2011 by Rachel

chemistry
If 24.0 L of O2 burns completely a sample of carbon disulfide, how many moles of sulfur dioxide (SO2) will be produced at 15 degrees Celsius at a pressure of 1.3 atm? CS2 + 3O2 -> CO2 + 2SO2
March 17, 2013 by M

chemistry
If 24.0 L of O2 burns completely a sample of carbon disulfide, how many moles of sulfur dioxide (SO2) will be produced at 15 degrees Celsius at a pressure of 1.3 atm? CS2 + 3O2 -> CO2 + 2SO2
March 17, 2013 by M

chemistry
If 24.0 L of O2 burns completely a sample of carbon disulfide, how many moles of sulfur dioxide (SO2) will be produced at 15 degrees Celsius at a pressure of 1.3 atm? CS2 + 3O2 -> CO2 + 2SO2
March 17, 2013 by M

Chemistry
What volume of carbon dioxide is produced when 0.979 mol of calcium carbonate reacts completely according to the following reaction at 0oC and 1 atm? calcium carbonate (s)---> calcium oxide (s) + carbon dioxide (g) Should I use the ideal gas law?
April 25, 2012 by Mohamed

chemistry
From the following combustion: 1-butanol + oxygen = carbon dioxide + water. How many grams of carbon dioxide and water are produced when 130.6 grams of 1-butanol is completely burned? Please help me! I have not a clue! Thanks so much!
November 28, 2009 by Turtle Lover

chemistry
sodium oxide reacts with carbon dioxide to form sodium carbonate. How much carbon dioxide is needed to produce 79g or sodium carbonate?
November 25, 2012 by Anonymous

chemistry
Need Help Finishing: Purpose: To observe a chemical reaction. Materials: Vinegar (acetic acid, CH3COOH) Baking soda (NaHCO3) Measuring cups and spoons Cup Procedure: 1. Place cup of vinegar in the cup. 2. Add 1 tablespoon on baking soda. 3. Record your observations...
January 21, 2007 by key

Science
What does copper react with when heated and what is formed as a result? (When you put copper underneath a fire, would the copper be reacting with oxygen or carbon dioxide?)
September 1, 2008 by Jerry

chemistry (science)
What volume of methanol is formed if 2.8610^11 of methane at standard atmospheric pressure and 25 degree celcius is oxidized to methanol? The density of CH3OH is 0.791g/mol . Assume that the oxidation of methane to methanol occurs in a 1:1 stoichiometry.
February 15, 2010 by beeni

Ecology
Aside from lead, the two air pollutants most hazardous to human health are: A. sulfur dioxide and carbon monoxide. B. ozone and sulfur dioxide. C. ozone and fine airborne particulates. D. nitrous oxides and carbon monoxide. is it A
July 31, 2014 by Amy

re-apchem post
a 2L container is charged with 2atm of O2 at 298 Kelvin. Ch4(g) + 2O2(g) --> CO2(g) + 2H20(g) calculate the partial pressure of methane needed to react completely with the O2 in the vessel. What is the total pressure after the reaction is complete if the temperature ...
April 12, 2009 by sarah

Chemistry
A piece of dry ice (solid carbon dioxide) with a mass of 25.5 g is allowed to sublime (convert from solid to gas) into a large balloon. Assuming that all of the carbon dioxide ends up in the balloon, what will be the volume of the balloon at a temperature of 18 degrees Celsius...
February 24, 2011 by Jake

Chemistry
A piece of dry ice (solid carbon dioxide) with a mass of 25.5 g is allowed to sublime (convert from solid to gas) into a large balloon. Assuming that all of the carbon dioxide ends up in the balloon, what will be the volume of the balloon at a temperature of 18 degrees Celsius...
February 24, 2011 by Jake

Chemistry
Toxic Carbon monoxide gas is produced when fossil fuels such as gasoline, burn wihtout sufficient oxygen gas. The CO ca eventually be converted to CO2 inthe atmsphere. Automobie cata;yctic converters are desgned to speed up this conversion: How many moles of oxygen gas would ...
March 31, 2011 by Keren

Science 1 question
5. Which of the following would be true during the inhalation phase of breathing? A. The lungs are inflated, oxygen concentration is high, and carbon dioxide concentration is low in the alveoli. B. The lungs are deflated, oxygen concentration is high, and carbon dioxide ...
May 21, 2014 by mstv1112

chemistry
How many moles of methane occupy a volume of 2.00 L at 50.0 degrees C and 0.500 atm? What formula do I use and how do I get it to moles??
December 13, 2009 by Mae

Chemistry
when heated, sodium bicarbonate, NaHCO3, decomposes into sodium carbonate, Na2CO3, water, and carbon dioxide. If 5.00 g of NaHCO3 decomposes what is the mass of the carbon dioxide produced?
March 8, 2010 by stocihs hard

Chemistry
when heated, sodium bicarbonate, NaHCO3, decomposes into sodium carbonate, Na2CO3, water, and carbon dioxide. If 5.00 g of NaHCO3 decomposes what is the mass of the carbon dioxide produced?
March 8, 2010 by stocihs hard

Chemistry
when heated, sodium bicarbonate, NaHCO3, decomposes into sodium carbonate, Na2CO3, water, and carbon dioxide. If 5.00 g of NaHCO3 decomposes what is the mass of the carbon dioxide produced?
March 8, 2010 by Kay

Biology
3) How many carbon dioxide molecules are liberated after each cycle of the Krebs cycle? For a single glucose how many carbon dioxide molecules were already liberated by the aerobic respiration at that point?
November 8, 2011 by Cassie

AP Chem need serious explanation
Calculate the number of moles of carbon atoms present in 1.4 g of ethanol (C2H6O). i get that you calculate the number of moles of ethanol whic i got was .03039 but how do you get the moles of CARBON from that.
September 22, 2012 by Joe King

chemistry
Ethanol (C2H6O) is combusted with oxygen to produce carbon dioxide and wateraccording to the following reaction: C2H6O + 3O2 -----> 2H2O + 3CO2 If 50g of ethanol is combusted, determine the volume of carbon dioxide that will be produced if the temperature is 25oC and the ...
August 3, 2012 by Jennifer

physical chemistry
For the process CH4(g) = C(s) + 2H2(g) A reaction is started in a rigid vessel at 1000 K with 1 mole of methane and 1 mole of hydrogen gas at 10 bar. Use table C.3 from your text to determine how many grams of carbon should be formed after the reaction has reached equilibrium.
November 12, 2010 by patrick

Chemistry
Butane, , is a component of natural gas that is used as fuel for cigarette lighters.At 1.00 and 23 , how many liters of carbon dioxide are formed by the combustion of 1.00 of butane? 2C4H10+13O2 yields 8CO2+10H2o
September 21, 2008 by George

Chemistry
Methane is formed in landfills by the action of certain bacteria on buried organic matter. If a sample of methane collected from a landfill has a volume of 200. mL at 741 torr and 27.2 C, how many grams of methane are in the sample? I get the PV=nRT p is 741/760= .975 V to L ...
July 9, 2014 by Luke

Chemistry
When one pound of gasoline (made up of compounds of hydrogen and carbon) is burned in an automobile approximately 3 pounds of carbon dioxide, CO2, is given off. Carbon dioxide is one of the gases contributing to global warming. What information from this experiment helps ...
October 3, 2010 by Chris

Chemistry
So I have the balanced equation: c3H8 +502 = 3C02 +4H20 Question: At STP propane (C3H8) burns in oxygen to form 2.15L of carbon dioxide and water. So I've got 2.15 L x 1 mole /22.4 L But when I try to do the mole ratio, I don't know what to do since the 2.15 L is of carbon ...
January 14, 2014 by Stefan

chemistry
Nitroglycerine decomposes according the the equation: 4C3H5(NO3)3 -> 12 CO2 + 10 H2O +6N2 + O2. 15.0 g of nitroglycerine is placed in a 500 ml flask at 25.0 C. The vapor pressure of water at this temperature is 23.8 mmhg. Find the total pressure in the flask after the ...
March 15, 2010 by Ben

chemistry
Propane reacts with oxygen in a combustion reaction. What volume of carbon dioxide gas is formed when 20 L of propane are reacted with 55.7 L of oxygen?
March 1, 2013 by john

chem
Elemental Sulfur can be formed through the combustion of Hydrogen Sulfide (found in Methane gas) give in equation H2S+O--->S + H2 4 tell how much sulfur is made from 250 grams of methane 2 H2S + O2---->2S +2 H2O s=32
February 9, 2010 by nycole

Chemistry
How many moles of carbon monoxide gas are produced when 2.88 moles of SnO2(s) react with excess carbon according to the equation below? SnO2(s) + 2C(s) --> Sn(s) + 2CO(g) How do you figure all of this out?
December 8, 2010 by Lauren K.

Thermochemistry
My question is more conceptual. It is expressed in a series of two problems: What energy change occurs when 1.2 moles of methane combust with an enthalpppy change of -434 KJ? CH4+2O2 TO CO2+2H20 I understand it is simply the moles of mthane times the enthalpy change yet I am ...
March 19, 2013 by Sean

chem
balance 1-butanol + oxygen=carbon dioxide+water how many grams of carbon dioxide and water are produced when 130.6 grams of 1-butanol is completly burned?
December 1, 2009 by lynn

Chemistry please help
104 ml of ethene, C2H4 is burned in 408 ml of oxygen, producing carbon dioxide and some liquid water. Some oxygen remain unreacted. Calculate the volume of carbon dioxide produced and the volume of oxygen remaining
September 11, 2014 by Anonymous

Chemistry
carbon dioxide (CO2) is the gas mainly responsible for global warming (the greenhouse effect). the burning of fossil fuels is a major cause of the increased concentration of CO2 in the atmosphere. carbon dioxide is also the end product of metabolism. a general overall equation...
June 13, 2011 by Lauren

chemistry
How many moles of carbon are needed to react with 5.01 mol SO2? How many moles of carbon monoxide form at the same time that 0.255 mol CS2 forms? How many moles of SO2 are required to make 125 mol CS2?
March 31, 2010 by libby

Chemistry
Larger amounts of methane, in the form CH4*6H20 is trapped at the bottom of the ceans in Clatharate compunds (formed when small molecules occupy the empty spaces in cage like structures). Calculate the mass of methane gas trapped with in one Kg of the hydrate
November 20, 2011 by Devin Boutte

chemistry
what is the mass of 1 mole of carbon dioxide (CO2), and silicon dioxide (SIO2)?
September 20, 2010 by Katie

Chemistry
Question 1. (SEE QUESTION 2 ) A Compound Containing 3 Atoms Of Carbon & 8 Atoms Of Hydrogen Is Combined In A Reaction With Oxygen Molecules. The 2 End Products Of This Equation Are Carbon Dioxide &water. What Element Should You Look At 1st In Balancing This Equation? Choose a....
July 8, 2008 by Mickeyv

College Chemistry
Two moles of Mg and five moles of O2 are placed in a reaction vessel, and then the Mg is ignited to produce Mg (F.W.= 40.31 g/mole). What is the actual mole ratio, the calculated mole ratio, how many moles of MgO are formed, and what is the weight of MgO formed?
October 21, 2012 by Shelby

chemistry
1.0 M aqueous solutions of AgNO3 , Cu(NO3 )2 and Au(NO3 ) 3 are electrolyzed in the apparatus shown, so the same amount of electricity passes through each solution. If 0.10 moles of solid Cu are formed how many moles of Ag and Au are formed?
April 27, 2012 by James

chemistry
what is the mass of 1.22x10^23 molcules of carbon dioxide(co2) and silicon dioxide(Sio2)?
September 20, 2010 by Katie

Honors Biology
Can someone check my work please? We had to fill in the blanks of a short paragraph with the correct keywords, but all these acronyms (I think thats what they're called ;P) confuse me. My answers will be in parentheses. " The Calvin Cycle begins when one molecule of carbon ...
October 15, 2008 by Emily

Chemistry
Glucose, C6H12O6, is a good source of food energy. When it reacts with hydrogen, carbon dioxide, and water are formed. How many liters of Co2 are produced when ___ grams of glucose completely react with oxygen?
May 26, 2011 by breanna

College Chem
How many liters of carbon dioxide at 20 oC and 750 torr are produced when one gallon of toluene is burned? C7H8 + 9O2 ==> 7CO2 + 4H2O 1 gallon toluene = about 3,785 mL density = about 0.867 g/mL mass toluene = 3785 mL x 0.867 g/mL = 3282 grams. moles toluene = grams/molar ...
October 4, 2010 by D

Chemistry
A leavening agent used in some older recipes is baking ammonia or ammonium bicarbonate. As it is heated, it breaks down into three gases- ammonia, water, and carbon dioxide. For each 20g of baking ammonia heated, how many grams of carbon dioxide are released?
October 4, 2009 by Anonymous

chemistry
What mass of carbon dioxide, water, and sulfur dioxide can be produced from the combustion of 1.5793g of C7H12S?
November 23, 2010 by Josh

Chemistry
Balance the photosynthesis equation: CO2+ H2O-> C6H12O6+ O2 Which i think this is Balanced: 6CO2 + 6H2O + energy-> C6H12O6 + 6O2 ? The question is this: According to the balanced equation __________ moles of carbon dioxide will react with _________moles of water to ...
February 4, 2012 by Lyssa

Chemistry
Balance the photosynthesis equation: CO2+ H2O-> C6H12O6+ O2 Which i think this is Balanced: 6CO2 + 6H2O + energy-> C6H12O6 + 6O2 ? The question is this: According to the balanced equation __________ moles of carbon dioxide will react with _________moles of water to ...
February 4, 2012 by Lyssa

Carbon
#1 where and in what form does carbon enter long term stores? It enters long-term stores in the form of Carbon dioxide, and is found in intermediate and deep ocean waters. On land, it is found in coal-deposits and in oil and gas deposits. #2 where and in what form does carbon ...
July 6, 2010 by Amanda

chemistry
Liquid hexane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 3.45 g of hexane is mixed with 16.3 g of oxygen. Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction. Be sure your answer has the...
December 6, 2011 by Emma

Science
Which of the following would be true during the inhalation phase of breathing? A. lungs are inflated, oxygen concentration is high, and carbon dioxide concentration is low in the alveoli. B. lungs are deflated, oxygen concentration is high, and carbon dioxide concentration is ...
February 2, 2014 by Anonymous

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 ---&...
March 25, 2007 by beth25

chemistry
Determine the mass of carbon monoxide that is produced when 45.6 g of methane, ch4 react with 73.2 g of oxygen gas, o2. The products are carbon monoxide and water vapour
July 27, 2010 by Kelsey

Chemistry
When a mixture of 10 moles of SO2 and 15 moles of O2 was passed over a catalyst, 10 moles of SO3 was formed. how many moles of SO2 and O2 did not enter into combination?
June 22, 2012 by Simran

chemistry
Solutions of sodium hydroxide cannot be kept for very long because they absorb carbon dioxide from the air , forming sodium carbonate. the unbalanced equation is NaOH(aq) + CO2(g) = Na2CO3(aq) + H2O(l) calculate the number of grams of carbon dioxide that can be absorbed by ...
February 5, 2010 by Philip

AP Chemistry
33.0 L of methane (CH4) undergoes complete combustion at 0.961 atm and 20◦C. How much CO2 is formed? Answer in units of L How much H2O is formed?
October 13, 2013 by Anonymous

Chemistry
I am trying to show that the combined weight of the reactants is equal to the combined weight of the reaction. When I placed CaCl2 into Na2 CO3 I didn't lose any weight. When I added Sulfuric Acid, I could not recork due to safety, therefore I lost Carbon Dioxide which reduced...
November 1, 2009 by Audra

Chemistry
The combustion of ethane (C2H6) produces carbon dioxide and steam: 2C2H6+702 yields 4CO2 +6H2O How many moles of CO2 are produced when 5.30 mol of ethane are burned in an excess of oxygen?
September 22, 2013 by Mary

chemistry
Write the balanced equations for the following examples: a) potassium hydroxide + sodium sulfide --> potassium sulfide + sodium hydroxide b) carbon disulfide + oxygen --> carbon dioxide + sulfur dioxide
March 10, 2012 by Nene

science
The atmospheres of Mars and Venus are mostly carbon dioxide. Earths atmosphere contains only a fraction of a percent of carbon dioxide. Why is Earths atmosphere so different from those of Mars and Venus?
February 23, 2013 by ricardo

chemistry Emergency TEST
1.How many moles of sodium oxide are produced when3.9 moles of sodium combine with excess oxygen. 2. Sodium chloride decomposes into elemental sodium and elemental chlorine.How many grams of chlorine will be produced if 39.4 grams of sodium chloride decomposes 3.If 6.7 moles ...
February 14, 2013 by Christian

science
how many oxygen atoms are in 773.2g of carbon dioxide? and also what is the molar mass of an element where 3.4 moles of the element has a mass of 669.69g? which elent is it?
May 6, 2013 by wardy

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