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May 24, 2015

Search: the heat of combustion of methane is -50.38kJ/mol. how many moles of methane must be burned to produce 137 kJ of heat

Number of results: 33,317

Chemistry
For the reaction: CH4(g) + 2O2(g)-->CO2(g)+2H2O (l) H = -50.38 kJ/mol, How many moles of methane (CH4) must be burned to produce 137 kJ of heat?
November 7, 2010 by Luke

Chemistry
The heat of combustion of methane is -890 kj per mole. How much heat will be produced in the combustion of 6.25 mol of methane?
May 22, 2014 by Anonymous

chemistry
Use Table 9.4 to calculate an approximate enthalpy or heat of reaction for the combustion of one mole of methane gas (CH4) to form gaseous H2O and CO2. What Volume (in L) of methane is needed to produce 3287 kJ of heat for methane gas at 11 oC and 3.40 atm pressure?
November 5, 2014 by john

Chemistry
How many kilograms of water at 15oC can be heated to 95oC by burning 143 grams of methane, CH4, assuming that 100% of the heat is used to heat the water. The heat of combustion of methane is 891 kJ per mole of methane. (The specific heat of water is 4.184 J/goC.) I am not sure...
January 30, 2012 by Hannah

Chemistry
Methane reacts with oxygen to produce carbon dioxide, water and heat. If the percent yield of the reaction is 90.0%, how many grams of methane must be burned to produce 150.0 kJ of energy? ___ CH4 (g)+ ___ O2 (g) → ___ CO2 (g) + ___ H2O(g) + 802 kJ
December 11, 2014 by Yasmin

Chem
Use the table to calculate an approximate enthalpy or heat of reaction for the combustion of one mole of methane gas (CH4) to form gaseous H2O and CO2. What Volume (in L) of methane is needed to produce 3329 kJ of heat for methane gas at 36 oC and 9.15 atm pressure? I got 20.7...
November 16, 2012 by Anonymous

Chem
Use the table to calculate an approximate enthalpy or heat of reaction for the combustion of one mole of methane gas (CH4) to form gaseous H2O and CO2. What Volume (in L) of methane is needed to produce 3329 kJ of heat for methane gas at 36 oC and 9.15 atm pressure? I got 20.7...
November 16, 2012 by Anonymous

Chemistry
I have previously posted this question, but now I am lost question: A calorimeter is filled with 10.0 millimole (mmole) of methane gas and an excess of oxygen. When burned, the ignition wire releases 107.2 J of heat. The heat capacity of the calorimeter (including the bomb and...
July 19, 2014 by Liz

chemistry
A furnace that provides heat by burning methane gas must have the correct mixture of air and fuel to operate efficiently. What is the mole ratio of air to methane gas in the combustion of methane? Hint: Air is 20% oxygen.
May 27, 2011 by john

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

chemistry
Calculate the volume of natural gas (methane) required to bring 2.6 L of water to a boil. Assume the initial temperature of the water is 21 C, and the methane is at 1 bar and 25 C. Assume that methane is an ideal gas, the specific heat capacity of water to be constant and ...
December 4, 2011 by Katie

Chemistry
Calculate the volume of natural gas (methane) required to bring 3.9 L of water to a boil. Assume the initial temperature of the water is 39 C, and the methane is at 1 bar and 25 C. Assume that methane is an ideal gas, the specific heat capacity of water to be constant and ...
December 2, 2011 by LaurenB

Chemistry
Methane burns with oxygen to produce carbon dioxide and water as a gas. The balanced thermochemical equation is Ch4(g) + 2)2(g) ---> CO2(g) + 2H2O(g) H = -802kJ How much methane, in grams, must be burned to release 544 kJ of heat? My answer: 544/802 = 0.678 0.678*16= 10....
March 24, 2015 by Is my right correct?

Chemistry
When one gram of gas, is burned, 55.5kJ of heat are released. How many pounds of methane gas must be burned to release 2.578 x 10^3kJ of heat?
June 19, 2013 by Tiffany

Chemistry
One mole methane is completly burned in xcess oxygen. If 8.90x10^3kj of heat are given off from theis reaction, calculate the heat given off for 1.44g of methane.
June 14, 2010 by Adeola

chem
If you burn 13.7 g of methane (CH4) burns in oxygen, then 686 kJ is evolved. What is the amount of heat produced per mole of methane burned?
January 27, 2015 by danny

Chemistry
What is the enthalpy change if 25.0 g of methane are burned? 890kJ of heat released for every mole of methane that reacts. CH4 + 2O2 = CO2 + 2H2O
March 18, 2014 by Tracy

Chemistry
Natural gas is almost entirely methane, CH4. What volume of natural gas at 20 C and 1.00 atm pressure is required to heat one quart of water from 20 C to 100 C? The density of methane at 20 C is 0.665 g/mL. The reaction for the combustion of methane is CH4 (g) + 2 O2 (g) -->...
March 18, 2014 by Anonymous

chemistry
In a methane fuel cell, the chemical energy of the methane is converted into electrical energy instead of heat that would flow during the combustion of methane. Using the half-reactions and reduction potentials given below a) Write a net equation for the reaction. b) Calculate...
August 3, 2011 by Vt

chemistry
In a methane fuel cell, the chemical energy of the methane is converted into electrical energy instead of heat that would flow during the combustion of methane. Using the half-reactions and reduction potentials given below a) Write a net equation for the reaction. b) Calculate...
August 3, 2011 by Vt

chemistry
when a 8.77g mixture of methane, and ethane is burned in oxygen at constant pressure, 476.6kJ of heat is liberated. What is the percentage by mass of CH4 in the mixture? The standard enthalpies of combustion for CH4 and C2H6 are -890.3kJ/mol and -1569.7kJ/mol, respectively.
November 22, 2010 by Anonymous

chemistry
When a 6.79-g mixture of methane, CH4, and ethane, C2H6, is burned in oxygen at constant pressure, 369 kJ of heat is liberated. What is the percentage by mass of CH4 in the mixture? The standard enthalpies of combustion for CH4 and C2H6 are -890.3 kJ mol-1 and -1569.7 kJ mol-1...
March 1, 2014 by abby

Chemistry
I got 0.907 KJ for ΔHcomb but I don't know if its correct. I also don't know how to write the equation. -------- question: A calorimeter is filled with 10.0 mole of methane gas and an excess of oxygen. When burned, the ignition wire releases 107.2 J of heat. The heat ...
July 16, 2014 by Liz

Chem
How much methane, in grams, must be burned to release 542 kJ of heat? H=-802kJ
June 26, 2014 by Luke

exam
calculate the heat of formation of methane Ch4(g) is its heat of combustion is-780kjmol-1. the heat of formation ofCo2(g)and H2O(l) are -388kjmol-1 and -360kjmol-1respectively.
July 12, 2014 by nay

Chemistry
Methane gas (carbon tetrahydride) reacts with oxygen by combustion: CH4 + 2O2 -> CO2 + 2H2O a.)How many moles of methane are needed to produce 3.5*10-4 moles of carbon dioxide? b.)How many moles of oxygen are needed to react form the 3.5*10-4 moles of carbon dioxide? c.)How...
November 3, 2013 by Kelsi

Ap Chemistry
Hydrogen gives off 120. J/g of energy when burned in oxgyen, and methane gives off 50. J/g under the same circumstances. If the mixture of 5.0 g of hydrogen and 10. g of methane is burned, and the heat released is transferred to 50.0 g of water at 25.0 degress Celsius, what ...
October 17, 2009 by Shawn

Science
BP -164C ΔHvap 8.136 kJ/mol sg 2.205 J/gC MP -182C ΔHfus 0.928 kJ/mol sl 2.41 J/gC Using the data above for methane, CH4, calculate the heat needed to convert 150. g of liquid methane at -175C to a gas at 25C.
October 28, 2010 by Joseph

Chemistry
How many liters of gasesous methane (CH4) must be burned in oxygen to produce enough H2O and CO2 to fill a 3.0 L balloon? Assume that H2O and CO2 are the only combustion products and that the temperature and pressure remain constant. How would I solve this? Attempt: 3.OL (1 ...
August 29, 2010 by Amy~

chemistry
When gas is burned: CH4 + 2O2 = CO2 + 2H2O, how many moles of water are produced when 6.2 mol of methane are burned?
November 14, 2011 by Lisa

chem
The heat of combustion of bituminous coal is 2.50 104 J/g. What quantity of the coal is required to produce the energy to convert 137.7 pounds of ice at 0.00C to steam at 100.C? specific heat (ice) = 2.10 J/gC specific heat (water) = 4.18 J/gC heat of fusion = 333 J/g ...
December 15, 2010 by Bogdanam

Chemistry help (DrBob222)
propane (c3h8) is burned in oxygen to produce carbon dioxide and water. The heat of combustion of propane is -2012 kJ/mole. How much heat is given off when 3.0 mol C3H8 are react with 10.0 mol O2? Thanks, and please if possible show all steps!
October 15, 2013 by K

chemistry
when burned, methane gives off heat at a rate of 342 J/g. How many kilojoules of heat will be given off when 4.50 kg burns?
November 14, 2011 by Doug

chemistry
A calorimeter consists of an interior metal bomb (container) surrounded by 2.22 kg of water all contained within an insulated exterior wall. A sample of propane, C3H8, weighing 6.89g, was burned in the calorimeter with excess oxygen. As a result of the combustion, the interior...
July 16, 2008 by Anonymous

Chemistry
What mass of methane must be combusted to produce 1.00 x 10^3 kJ of heat? could someone write the equation and the answer? Thank You.
May 20, 2010 by Anonymous

Chemistry
I got 0.907 KJ for ΔHcomb but I don't know if its correct. I also don't know how to write the equation. -------- question: A calorimeter is filled with 10.0 mole of methane gas and an excess of oxygen. When burned, the ignition wire releases 107.2 J of heat. The heat ...
July 16, 2014 by Liz

Science
a 67 gram chunk of ice (Heat of Fusion = 6.0 kJ/mol) in a beaker immersed in a water bath. To produce just enough heat to melt the ice, how many moles of solid NaOH (Heat of Solution = -445.1 kJ/mol) must be added to this system to just melt the ice. (Moles)
January 27, 2014 by Anonymous

Chemistry
A mole of methane reacts with 64g of oxygen at 1 atm, 425 K. There are two ways in which methane can react with oxygen. It can either form water vapor and carbon dioxide or water vapor and carbon monoxide. After reaction the final gas density is 0.7282 g/L. What is the ...
November 18, 2010 by Natalie

chemistry
how many moles of methane are required to produce 22g of CO2 after combustion
July 24, 2011 by rahul

sbmjc
how many moles of methane is required to produce g of co2 after the complete combustion ?
November 6, 2014 by sara

chemistry
How many grams of methane must be combusted to heat 1.05 of water from 24.0 to 89.0, assuming as a product and 100% efficiency in heat transfer?
October 27, 2011 by Collin

Chemistry
How many grams of methane must be combusted to heat 1.05 of water from 24.0 to 89.0, assuming as a product and 100% efficiency in heat transfer?
October 27, 2011 by Collin

chem 101
Biphenyl (C1 2H1 0) burned in a bomb calorimeter in order to determine its heat of combustion. The heat capacity of the calorimeter was 5.86 kJ/C When 0.514 g of biphenyl was burned, the temperature of the calorimeter increased from 25.8 C to 29.4 C. Determine the enthalpy ...
April 15, 2012 by Anonymous

chem 101
Biphenyl (C1 2H1 0) burned in a bomb calorimeter in order to determine its heat of combustion. The heat capacity of the calorimeter was 5.86 kJ/C When 0.514 g of biphenyl was burned, the temperature of the calorimeter increased from 25.8 C to 29.4 C. Determine the enthalpy ...
April 11, 2012 by Anonymous

chem 101
Biphenyl (C1 2H1 0) burned in a bomb calorimeter in order to determine its heat of combustion. The heat capacity of the calorimeter was 5.86 kJ/C When 0.514 g of biphenyl was burned, the temperature of the calorimeter increased from 25.8 C to 29.4 C. Determine the enthalpy ...
April 11, 2012 by Anonymous

College Chemistry
Consider the following reaction that occurs when natural gas is burned. CH4(g) + 2O2(g) CO2(g) + 2H2O(g) How many moles of water are produced when 6.2 mol of methane are burned? Assume that there is more than enough oxygen present.
March 26, 2012 by Lisa

chemistry
Calculate the mass of ethanol that must be burnt to increase the temperature of 150g of water by 75 degrees celsius, if exactly 75% of the heat released by this combustion is lost to the surroundings. Also it is given that the heat of combustion of ethanol 1367 kJ.mol^-1 and ...
February 7, 2015 by Isabella

chem 105
How many liters of , measured at 20 , must be burned to provide enough heat to warm 28.3 of water from 15.5 to 31.3 , assuming that all the heat of combustion is transferred to the water, which has a specific heat of 4.18 ? Recall that .
March 27, 2013 by Anonymous

chemistry
Methane gas is burned releasing Carbon Dioxide into the atmosphere. How much CO2 (g) is released if 78.5 Liters of Methane is burned? CH4 + O2 --> CO2 + H2O
May 1, 2013 by kate

Chemistry
heat of combustion of propane c3h8, 2220KJ/mol. the specific heat of copper is 0.385 J/g*C. How many grams of propane must be burned to raise the temperature of a 10.0kg block of copper from 25.0 C to 65.0 C,assuming none of the heat is lost to the surroundings I'm stuck on a ...
March 30, 2015 by Cassandra

Chemistry
how many Kj of heat are evolved when 6g of pure carbon is completely burned? how many grams of carbon must be burned to furnish 39.3 kJ of heat. enthalpy of combustion of carbon is -393.5
November 24, 2014 by Shabana

Chemistry
It has been proposed that wood alcohol, CH3OH, a relatively inexpensive fuel to produce, be decomposed to produce methane. Methane is a natural gas, commonly used for heating homes. is a decomposition from wood alcohol to methane and oxygen thermodynamically feasible at 25 ...
April 7, 2010 by Anmol

chemistry
The combustion of 0.0222g of isooctane vapor, C8H18(g), at constant pressure raises the temperature of a calorimeter 0.400 C. The heat capacity of the calorimeter and water combined is 2.48 kJ/C. Find the molar heat of combustion of gasdeous isooctane. C8H18(g)+12 1/2O2(g) to ...
February 5, 2011 by Anonymous

chemistry 101
How much alcohol must be burned to generate 279kj of heat to warm the water as described in problem 3? (60F to 180F) I've seen where they say the answer is (mass of alcohol)(heat ofcombustion)=279 and you solve for mass. However how am I to know which heat of combustion to use...
April 15, 2012 by Anonymous

Chemistry
Hydrogen is burned in oxygen to release heat. How many grams of hydrogen gas must be burned to release enough heat to warm a 50.0 g block of iron, giving 5 mol of water? 2 H2(g) + O2(g) → 2 H2O(g) ΔH = −484 kJ Iron has a specific heat of 0.449 J/(gC).
June 7, 2011 by Lance

AP chemistry
Propane (C3H8) is burned in oxygen to pro- duce carbon dioxide and water. The heat of combustion of propane is -2012 kJ/mole. How much heat is given off when 3.0 mol C3H8 are reacted with 10.0 mol O2?
November 26, 2011 by desdemona

chemistry
A sample of naphthalene (C10H8) that has a mass of 0.7200 g is burned in a bomb calorimeter. The mass of the calorimeter is 1.580 kg, and its specific heat is 2.55 J/(g C). As a result of the reaction, the temperature of the calorimeter increases from 22.00C to 29.3C. If 1 ...
August 22, 2013 by sean

chemistry
A ten gallon methane tank contains 1.243 mol of methane at 74F. Express the volume of tank in liters, the amount of methane in the tank in grams, and the tempature of the tank in kelvin.
February 10, 2011 by Kalyn

Chemistry
if you could just help me set them up the would do me some good. Thanx A. In the single reaction of chlorine and potassium bromide, how many grams of potassium chloride can be produced from 200.g each of chlorine and potassium bromide? Identify the limiting reactants. B. In ...
October 29, 2007 by Monte'

Chemistry
Are my answers correct? C6H14 + 19/2 O2 -> 6 CO2 + 7H2O enthalpy change = -4163 kJ a) if 0.537 mol of carbon dioxide is produced in the reaction represented by the equation above, how much heat is released by the reaction? Enthalpy change = 0.537 mol CO2 x -4163kJ/6 mol CO2...
February 10, 2013 by A Canadian

Chemistry
At constant volume the heat of combustion of a particular compound is -3378.0 kj/mol.When 1.563 g of this compound ( molar mass of 126.88 g/mol )was burned temp rose 6.991 C. What's the heat capacity of the calorimeter(calorimeter is constant)?
March 22, 2013 by Raul

Chemistry
In a laboratory activity, a student team measures the heat released by burning heptane. Using the following data, calculate the molar heat of combustion of heptane in kJ/mol: Mass of water - 179.2 g Initial water temperature - 11.6 degrees C Final water temperature - 46.1 ...
April 21, 2008 by Natasha

chemistry
You want to heat your house with natural gas CH4. The house has 275 sq. m of the floor area and the height of 2.5 m (between the floor and the ceiling). The air has a specific molar heat capacity of 29.1 j/mol*K. The molar mass of air is 28.9 and a density of 1.22 g/L at these...
November 12, 2008 by Sarah

chemistry
Assuming the molor mass of paraffin is 280 g/mol, calculate the # of mols of paraffin burned. Then calculate the heat of combustion of paraffin in kJ/mol I don't think I can help you with the information provided. We need an equation (although we can wing that one) but we also...
September 26, 2006 by dan

AP Chemistry
A typical bathtub can hold 93 gallons of water. Calculate the mass of natural gas that would need to be burned to heat the water for a tub of this size from 60◦F to 99◦F. Assume that the natural gas is pure methane(CH4) and that the products of combustion are ...
October 11, 2013 by Gabriella

chemistry
If the heat of combustion for a specific compound is -1460.0 kJ/mol and its molar mass is 55.75 g/mol, how many grams of this compound must you burn to release 900.20 kJ of heat?
April 5, 2012 by catey

Chemistry
If the heat of combustion for a specific compound is -1320.0 kJ/mol and its molar mass is 92.41 g/mol, how many grams of this compound must you burn to release 544.30 kJ of heat?
October 9, 2012 by Anonymous

chemistry
If the heat of combustion for a specific compound is -1310.0 kJ/mol and its molar mass is 75.45 g/mol, how many grams of this compound must you burn to release 708.60 kJ of heat?
October 21, 2012 by :)

Chemistry
If the heat of combustion for a specific compound is -1010.0 kJ/mol and its molar mass is 46.03 g/mol, how many grams of this compound must you burn to release 388.00 kJ of heat?
March 27, 2013 by Anonymous

Chem
If the heat of combustion for a specific compound is -1170.0 kJ/mol and its molar mass is 42.75 g/mol, how many grams of this compound must you burn to release 191.90 kJ of heat?
July 13, 2014 by Anonymous

Chemistry
Consider the following reaction: CH4 +2O2 -> CO2 + 2H2O. Delta H = -891 kJ Calculate the enthalpy change for each of the following cases: a. 1.00 g methane is burned in excess oxygen b. 1.00 x 10^3 L methane gas at 740. torr and 25 *C is burned in excess oxygen
October 11, 2010 by Anonymous

Chemistry (balance)
if the heat of combustion for a specific compound is -1320.0 KJ/mol and its molar mass is 67.53 g/mol how many grams of this compound must you burn to release 791.60 kj of heat
August 20, 2012 by Jacob

Chemistry
If the heat of combustion for a specific compound is -1080.0 kJ/mol and its molar mass is 58.29 g/mol, how many grams of this compound must you burn to release 300.60kJ of heat?
October 29, 2013 by Patricia

Chemistry
there are ___ molecules of methane (CH4) in 0.123 moles of methane? a. 16 b. 0.773 c. 2.46 x 10 -2 d. 7.40 x 10 22 e. 6.02 x 10 23
November 1, 2009 by Pandorah

Chemistry
a)What mass of water is produced from the complete combustion of 2.3010−3 g of methane? b)What mass of oxygen is needed for the complete combustion of 2.3010−3 g of methane? This is the unbalanced equation given: CH4+O2->CO2+H2O
September 21, 2010 by Cindy

chemistry
liquid heptane C7H16 is completely combusted to produce CO2 and H2O: C7H16 + 11O2 --> 7CO2 + 8H2O the heat combustion for one mole of C7H16 is -4.85*10^-3 CO2 heat of comb. = -393.5 H2O h of c= -285.8 a) calc. the vale of heat of cumbustion for C7H16 in kJ/mol a .0108 mol ...
March 10, 2010 by hilde

Chemistry
Camphor (C10H16O) has a heat of combustion of 5903.6 kJ/mol. When a sample of camphor with a mass of 0.124 g is burned in a bomb calorimeter, the temperature increases by 2.28 oC. Calculate the heat capacity of the calorimeter.
September 16, 2012 by Nisah

Chemistry
15.0 moles of gas are in a 6.00L tank at 298.15K. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a=2.300 L^2*atm/mol^2 and b=0.0430 L/mol. I found the idea gas pressure to be 61.2 atm by...
September 13, 2012 by Lori

chemistry
The volume of a sample of dry methane (CH4) collected at 25C was 7.00 L. The total pressure was 688 torr. How many moles of methane were collected? Write answer as X moles in the blank.
October 26, 2012 by Victoria

Chemistry
A 1.76g sample of quinone, C6H4O2, is burned in a calorimeter whose total heat capacity is 7.854 kJ/C. The temperature of the calorimeter increases from 23.44 C to 29.14 C. What is the heat of combustion per mole of quinone? The molar mass of quinone is 108.1 g/mol. The answer...
May 20, 2015 by Haley

ap chemistry
Propane (C3H8) is burned in oxygen to pro- duce carbon dioxide and water. The heat of combustion of propane is -2012 kJ/mole. How much heat is given off when 3.0 mol C3H8 are reacted with 10.0 mol O2? 1. 4024 kJ 2. 2012 kJ 3. 916 kJ 4. 1555 kJ 5. 5122 kJ 6. 672 kJ 7. 6036 kJ 8...
October 31, 2012 by cheri

chemistry
A 1.800 g sample of octane, C8H18, was burned in a bomb calorimeter whose total heat capacity is 11.66 kJ/C. The temperature of the calorimeter plus contents increased from 21.12C to 29.85C. What is the heat of combustion per gram of octane? What is the heat of combustion ...
January 31, 2013 by evgeny

chemistry
Using standard heat of formations. (Appendix II in text). Calculate the standard enthalpy change for the combustion of methane. CH4 (g) + 2 O2 --- 2CO2(g) + 2H2O (l) H0 = ?
March 6, 2012 by chris

Molar heat of combustion question!
Calculate the molar heat of combustion of paraffin, expressed in units of kJ/mol. First calculate the thermal energy released when one mole of parafin burns) because one mole of parafin (c25h52) has a mass of 325g, the molar heat of combustion will be 352 times greater than ...
February 5, 2013 by Allyson

chemistry
At constant volume, the heat of combustion of a particular compound is 3334.0 kJ/mol. When 1.569 g of this compound (molar mass = 125.76 g/mol) was burned in a bomb calorimeter, the temperature of the calorimeter (including its contents) rose by 5.173 C. What is the heat ...
November 28, 2012 by Ag10

chemistry
At constant volume, the heat of combustion of a particular compound is 3323.0 kJ/mol. When 1.489 g of this compound (molar mass = 131.02 g/mol) was burned in a bomb calorimeter, the temperature of the calorimeter (including its contents) rose by 8.077 C. What is the heat ...
February 6, 2013 by Brianna

Chemistry
At constant volume, the heat of combustion of a particular compound is 3547.0 kJ/mol. When 1.239 g of this compound (molar mass = 196.58 g/mol) was burned in a bomb calorimeter, the temperature of the calorimeter (including its contents) rose by 8.539 C. What is the heat ...
June 18, 2013 by Jessica

chemistry
At constant volume, the heat of combustion of a particular compound is 3599.0 kJ/mol. When 1.365 g of this compound (molar mass = 102.90 g/mol) was burned in a bomb calorimeter, the temperature of the calorimeter (including its contents) rose by 7.819 C. What is the heat ...
October 27, 2013 by brianna

chem
At constant volume, the heat of combustion of a particular compound is 3209.0 kJ/mol. When 1.829 g of this compound (molar mass = 159.29 g/mol) was burned in a bomb calorimeter, the temperature of the calorimeter (including its contents) rose by 6.753 C. What is the heat ...
July 13, 2014 by Anonymous

Chemistry
At constant volume, the heat of combustion of a particular compound is 3949.0 kJ/mol. When 1.331 g of this compound (molar mass = 141.44 g/mol) was burned in a bomb calorimeter, the temperature of the calorimeter (including its contents) rose by 3.837 C. What is the heat ...
February 23, 2015 by meg

Chemistry
A 3.78 g sample of ethanol (C2H5OH) was burned completely in a bomb calorimeter. The temperature of the calorimeter plus the contents increased from 25.6oC to 35.2oC. Knowing that ethanol's heat of combustion is -3600 kJ/mol, calculate the total heat capacity ( in kJ/oC ).
November 21, 2014 by Amanda

Chemistry Help!!!
1) When hydrazine (N2H4) is burned in a 253-g brick container, the temperature of the brick increases by 5.13 degrees Celsius. Calculate the quantity of heat released in this raection. The specific heat of brick is 0.840 J/(gC). 2) A sample of coal is burned in a bomb ...
November 14, 2010 by Sarah

Chemistry
A)What mass of carbon dioxide is produced from the complete combustion of 7.0010−3 g of methane? B)What mass of oxygen is needed for the complete combustion of 7.0010−3 g of methane?
October 3, 2011 by Hannah

Chemistry
1) When hydrazine (N2H4) is burned in a 253-g brick container, the temperature of the brick increases by 5.13 degrees Celsius. Calculate the quantity of heat released in this raection. The specific heat of brick is 0.840 J/(gC). 2) A sample of coal is burned in a bomb ...
November 14, 2010 by Sarah

Chemistry
1) When hydrazine (N2H4) is burned in a 253-g brick container, the temperature of the brick increases by 5.13 degrees Celsius. Calculate the quantity of heat released in this raection. The specific heat of brick is 0.840 J/(gC). 2) A sample of coal is burned in a bomb ...
November 14, 2010 by Sarah

chemistry
When the equation for combustion for ethane is balanced using integer coefficients, the ΔH for the reaction = -2834 kJ. How many grams of ethane must be burned in order to heat 277.3 grams of water from 54.0C to the boiling point and then boil all of it into the gas ...
April 16, 2015 by Riese

chemistry:URGENT
How to convert (a)ethane to propanone (b)propanone to ethane (c)isobutane to propanone (d)methane to benzene (e)benzene to methane (f)ethyne to methane (g)propanone to benzene (h)ethene to propene (i)Propan-2-ol to Propan-1-ol using:oxidation,reduction,halogenation,combustion,...
March 1, 2010 by sashank

Chemistry
How much heat is given off when 24.0 g of methane is burned in air? The equation for the reaction is: CH4 + 2O2 => CO2 + 2H2O + 890 kJ What equation or formula should I use to solve this? Thanks!
March 29, 2010 by Lily

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
When 0.373 g of compound X is burned completely in a bomb calorimeter containing 3000 g of water, a temperature rise of 0.341 C is observed. What is ∆Urxn for the combustion of compound X? The hardware component of the calorimeter has a heat capacity of 3.19 kJ/ ◦C...
January 11, 2012 by bob

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