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December 22, 2014

# Search: butane combustion

Number of results: 1,065

Chemistry
Consider the combustion of propane: C3H8(g)+5O2(g) yields 3CO2(g) + 4H2O(l) delta H= -2221 kJ Assume that all of the heat comes from the combustion of propane. Calculate delta H in which 5.00g of propane is burned in excess oxygen at constant pressure.
November 13, 2011 by Shellby

Chemistry(HELP)
Can you check this answer? 1. Heat of combustion is the heat released by the complete combustion of one mole of a substance. a.) True b.) False Answer: b.) False Is this right?
April 5, 2011 by Cheryl

chem-- delta H
In your search for fuel to use after the reserves of gasoline dry up, you decided to analyze different compounds (2 hydrocarbons & an alcohol) by combustion. You independently combust methane (CH4), ethane (CH3CH3), and ethanol (CH3CH2OH) at 298 K and 1 atm. What is teh delta ...
October 23, 2013 by Emma

chemistry
A 1.55 gram sample of methanol (CH3OH) is combusted in a bomb calorimeter. The molar heat of combustion of methanol is -725KJ/mole, assuming that 2.0L of water initially at 25.0 C absorbs all of the heat of combustion, what is the final temperature of the water?
June 10, 2012 by john

chemistry
The complete combustion of salicylic acid releases 21.90 kJ of energy per gram of salicylic acid. In a particular bomb calorimeter (initially at room temperature), the combustion of 0.1182 g of salicylic acid, in the presence of excess oxygen, causes the temperature of the ...
September 27, 2014 by korko

Inorganic chemistry
The thermochemical equation for the combustion of hexane is shown below. C6H14(g) + 19/2Os(g) ==> 6CO2(g) + 7H2O(g) Delta H = -4163kJ What is the enthalpy change for the combustion of 2.50g C6H14? 2.50 g/86g = .029 mol -4163kJ/.029 = -1.43 x 10^5kJ
May 12, 2009 by Steve

chemistry
how many moles of butane gas c4h10 react to produce 3.50moles of water?
November 4, 2010 by tracey

Chemistry
Skeletal structural formulas of pentane,2 methyl butane and 2,2 dimethyl propane

chemistry
With the aid of chemical equation only describe how butane can be converted to but-2-ene
April 18, 2012 by Elliot

Chemistry
Which hydrocarbon is least likely to dissolve in water - hexane, butane, decane?
September 9, 2012 by Cassie

chem
consider the following thermochemical equation for the combustion of acetone C3H6O(l)+4O2(g)---->3CO2(g)+3H2O(g) delta H rxn=-1790kJ. If a bottle of nail polish remover contains 179mL of acetone, how much heat would be released by its complete combustion? the density of ...
October 17, 2008 by natash

Chem
Solid urea, (NH2)2CO, burns to give CO2,N2, and liquid H2O. Its heat of combustion is -632.2 kJ/mol. Balance the equation for combustion of urea, and calculate the heat generated per mole of H2O formed. (Enter in kJ.)
October 23, 2014 by Martin

Chemistry
Solid urea, (NH2)2CO, burns to give CO2,N2, and liquid H2O. Its heat of combustion is -632.2 kJ/mol. Balance the equation for combustion of urea, and calculate the heat generated per mole of H2O formed. (Enter in kJ.)
October 23, 2014 by Kales

chem 101
a.write a balanced chemical equation for the complete combustion of sucrose. --- this part of the question i got help on, and thank you b. if combustion is complete, a brown liquid caramel might form, followed by a brown/black solid. what would be the major component of the ...
September 29, 2010 by emily

chem
consider a mixture of air and gasoline vapor in a piston. original V is 30cm^3. if the combustion of misture releases 985J energy, to what volume will the gases expand against a constant pressure of 655 torr if all energy of combustion is converted into work ro push back the ...
November 20, 2007 by mel

AP Chemistry
how much heat is produced when the body metabolizes a gram of trioleylglycerol? I know that the combustion of triolelglycerol is exothermic with an enthalphy change of 9 calories per gram of trioleylglycerol molecules, so the combustion will release heat to the surroundings. I...
January 21, 2013 by Timofey

Physics
What would the volume of commercial butane be equal to given an air flow of 0.6 cubic metres/hr?
December 9, 2010 by Harry

Chemistry
a)What mass of water is produced from the complete combustion of 2.30×10−3 g of methane? b)What mass of oxygen is needed for the complete combustion of 2.30×10−3 g of methane? This is the unbalanced equation given: CH4+O2->CO2+H2O
September 21, 2010 by Cindy

chemistry
An unknown organic compound that contains carbon,hydrogen and oxygen undergoes a combustion analysis. What happen to the carbon atoms and hydrogen atoms in the compound,assuming that the combustion goes to completion?
October 18, 2011 by Anonymous

College Chem involving heat of combustion
Calculate the heat of combustion: 1.C2H4(g)+3O2(g)===>2CO2(g)+2h20(L) _____kJ/mol 2.2H2S(g)+3O2(g)===>2H2O(L)+2SO2(g) _____kJ/mol
October 31, 2010 by Anonymous

Chemistry Help!!
Propane(C3H8), the major component of LP game, is often used as heating and cooking fuels in homes. When propane is burned( reacted with oxygen), CO2(g) and H2O(g) are produced. 1) Write an equation for the reaction and calculate the enthalpy change for the combustion of ...
October 12, 2011 by Maci

physics(heat)
A geyser heats water flowing at the rate of 3L/min from 27 deg C to 77 deg C. if the geyser operates on a burner, what is the rate of combustion of the fuel if its heat of combustion is 40000J/g?
May 29, 2012 by ridhi

physics(heat)
A geyser heats water flowing at the rate of 3L/min from 27 deg C to 77 deg C. if the geyser operates on a burner, what is the rate of combustion of the fuel if its heat of combustion is 40000J/g?
May 29, 2012 by ridhi

chemistry
.predict and expalain the order of melting point for propanol, butane, and proanone with refernce to their intermolecular forces.
February 26, 2010 by Richard

chemistry
Balanced equation of the reaction that occurs when the butane in cigarette lighters burns in the presence of enough oxygen
March 18, 2014 by patience

Environmental Science
Coal combustion can affect aquatic (freshwater) or marine (saltwater) organisms in different ways. Describe each step involved in one such way, from combustion to the effect(s) on one or more species. Which environmental sphere(s) is involved in each step, and how?
March 30, 2014 by jennua

Chem
The following substances undergo complete combustion in a bomb calorimeter. The calorimeter assembly has a heat capacity of 5.136 ^ C. In each case, what is the final temperature if the initial water temperature is 22.37^ C? 0.3268g caffeine, C8H10N4 (heat of combustion = -...
October 29, 2012 by Alex

Chemistry
In the formula 2C4H10+13O2=10H2O+8CO2 whats the mass of butane needed to produce 79.7g of carbon dioxide.
February 26, 2013 by Anonymous

chemistry
ethane,C2H6 burns in oxygen. A. what are the products of the reaction? B. write the balanced equation for the reaction. C. what mass of O2, in grams is required for complete combustion of 13.6 of ethane? D. what is the total mass of products expected from the combustion of 13....

chemistry
While researching energy values of fuels, a chemist designed an experiment to find out the heat of combustion of pentane. Using the known hexane heat of combustion of hexane = 4650kJ/mol and the data below calculate the heat of combustion of pentane. Set up= copper beaker 42....
March 28, 2010 by sarah

chemistry
While researching energy values of fuels, a chemist designed an experiment to find out the heat of combustion of pentane. Using the known hexane heat of combustion of hexane = 4650kJ/mol and the data below calculate the heat of combustion of pentane. Set up= copper beaker 42....
March 28, 2010 by sarah

Chemistry
A XX-g sample of methane, CH4, is mixed with YY atm of O2 (an excess) in a VV L combustion chamber at 125.0°C. The combustion reaction to CO2 and H2O is initiated and the vessel is cooled back to 125.0°C. What is the final pressure in the combustion chamber assuming the ...
February 25, 2007 by Jack

Chemistry
The sugar arabinose, C5H10O5, Molar Mass = 150.15 g/mole, was completely combusted with excess oxygen in a calorimeter. Combustion of a 0.548 g sample of arabinose caused the temperature to increase from 20.00 degrees C to 20.54 degrees C in a calorimeter with a total heat ...
November 2, 2011 by Anonymous

Chemistry
Can someone please check this for me? C4H8+5O2-->3CO2+4H2O+C Butane is a gas and .01 g of it is burned. Is .00218 g of carbon the result? Thanks
November 1, 2009 by Maryanne

Chemistry
A)What mass of carbon dioxide is produced from the complete combustion of 7.00×10−3 g of methane? B)What mass of oxygen is needed for the complete combustion of 7.00×10−3 g of methane?
October 3, 2011 by Hannah

Chemistry - Combustion Method
This question is confusing me the way its presented and also is relating it to the combustion method that is used to analyze carbon and hydrogen. It can be used to give percent N. It says a sample of a compound that weighs 8.75 mg gave 1.59 mL of N2 at 25 degrees Celsius and ...
May 1, 2010 by Shinu

Chemistry
Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 50. cm3. If the combustion of this mixture releases 990. J of energy, to what volume will the gases expand against a constant pressure of 645 torr if all the energy of combustion ...
October 13, 2011 by Sam

chemistry
Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 70. cm3. If the combustion of this mixture releases 885 J of energy, to what volume will the gases expand against a constant pressure of 645 torr if all the energy of combustion is...
October 22, 2012 by Brandon

Chemistry
A 3.000 gram sample of an unknown compound containing the elements carbon, hydrogen, and nitrogen is analyzed by combustion. The combustion releases 4.714 grams of carbon dioxide and 1.500 grams of nitrogen. If 25 molecules have a combined mass of 4.65 x 10⁻²¹ grams, ...
October 18, 2011 by Mom

CHEMISTRY
If heat of combustion of acetylene C2H2 is -1301.1 kJ/mol then : a) Write balanced thermochemical equation of acetylene combustion b) If 0.25 mol C2H2 reacted according to the previous equation , and what is the emitted energy ? c) how many grams needed to give off 3900 kJ ...

chemistry
Problem#9: Consider the fuel octane (the main component of gasoline) and its combustion reaction 2C8H18(l) + 25O2(g) → 16CO2(g) + 18H2O(l) ΔHo = -10,942 kJ The “fuel value” of a fuel (unit kJ/g) is defined as the energy released when 1 g of the fuel undergoes ...
October 21, 2010 by Sarah

chemistry
When 0.558g of biphenyl (C_12H_10) undergoes combustion in a bomb calorimeter, the temperature rises from 25.7^\circ C to 30.1^\circ C. Find DeltaE_rxn for the combustion of biphenyl in kJ/mol biphenyl. The heat capacity of the bomb calorimeter, determined in a separate ...
December 19, 2012 by savannah

AP Chemistry
A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50 degrees celsius. The bomb is constructed of 285.0 g of nickel metal having a specific heat capacity of Cp = 0.826 J/ g degrees C. The final ...
September 30, 2007 by Kate

AP CHEMISTRY
A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50 degrees celsius. The bomb is constructed of 285.0 g of nickel metal having a specific heat capacity of Cp = 0.826 J/ g degrees C. The final ...
September 30, 2007 by Kate

CHEMISTRY
A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50 degrees celsius. The bomb is constructed of 285.0 g of nickel metal having a specific heat capacity of Cp = 0.826 J/ g degrees C. The final ...
September 30, 2007 by Jake

College Chemistry
Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 50. cm3. If the combustion of this mixture releases 955 J of energy, to what volume will the gases expand against a constant pressure of 675 torr if all the energy of combustion is...
October 31, 2011 by Amanda

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 21.12°C to 29.85°C. What is the heat of combustion per gram of octane? What is the heat of combustion ...
January 31, 2013 by evgeny

chemistry
When 0.451g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises from 26.7∘C to 29.6∘C.Find ΔErxn for the combustion of biphenyl in kJ/mol biphenyl. The heat capacity of the bomb calorimeter, determined in a separate ...
April 6, 2014 by Anonymous

Chemistry
When 0.312g of glucose was burned in a bomb calorimeter (heat capacity 641 J/K) the temperature rose by 7.739 K. Calculate the standard enthalpy of combustion and the standard internal energy of combustion. I've calculated the standard enthalpy but am unsure of how to go about...
September 25, 2012 by Kalli

Chemistry 121
Is 450g of oxygen enough to burn 125g of butane according to the following equation? C4H10 + O2 ---> CO2 + H2O? show why or why not?
November 3, 2011 by Tim

Chemistry
Which of the two, benzoic acid and sucrose, has the largest heat of combustion and why? Can you look up the heats of combustion. I found -3226.9 kJ/mol for benzoic acid and -5637 kJ/mol for sucrose but you should look for yourself and confirm those numbers. Write the combusion...
March 26, 2007 by Amy

Chemistry
The temperature rises from 25.00 °C to 29.00 °C in a bomb calorimeter when 3.50 g of sucrose undergoes combustion in a bomb calorimeter. Calculate ÄErxn for the combustion of sucrose in kJ/mol sucrose. The heat capacity of the calorimeter is 4.90 kJ/°C . The molar mass of ...
December 6, 2012 by Emma

chem
Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (-2341 kJ/mol), C4H8 (-2755 kJ/mol), and H2 (-286 kJ/mol), ...
November 27, 2007 by mel

chemistry
Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (-2341 kJ/mol), C4H8 (-2766 kJ/mol) and H2 (-286 kJ/mol), ...
December 28, 2010 by Lux

Chemistry
Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 30. cm3. If the combustion of this mixture releases 980. J of energy, to what volume will the gases expand against a constant pressure of 640. torr if all the energy of combustion ...
November 18, 2010 by Mattie

Chemistry
H2O2 + Heat = H2O + O2 Would this be combustion or decomposition? Since the products are H2O and O2, I thought it would be combustion but then H2O can be decompose into H2O and O2 which would be decomposition.

chemistry
Upon complete combustion, the indicated substances eveolve the given quantities of heat. Write a balanced equation for the combustion of 1.00 mol of each substance, including the enthalpy change, ÄH, for the reaction. a) 0.548g of propane, C3H8(g), yields 29.4 J b) 2.35 mL of ...
December 8, 2008 by Mel

Chemistry
The combustion of 0.0222g of isooctane vapor, C8H18(g), at constant pressure raises the temperature of a calorimeter 0.400 degrees C. The heat capacity of the calorimeter and water combined is 2.48kJ/degrees C. Find the molar heat of combustion of gaseous isooctane. The ...
October 9, 2012 by Heather

Chemistry
The heat of combustion of benzene, C6H6, is -41.74 kJ/g. Combustion of 3.65 of benzene causes a temperature rise of 4.41 C^o in a certain bomb calorimeter. What is the heat capacity of this bomb calorimeter? (kJ/C^o) So, I what I did was I multiplied -41.74 kJ/g and 3.65 to ...
December 15, 2014 by Bobby

Chemistry
Which of the following gases would you keep in an outdoor storage tank in winter? Explain why. methane(CH4), Propane(C3H8), or butane(C4H10)
December 6, 2010 by Sara

Chemistry
A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50 degrees celsius. The bomb is constructed of 285.0 g of nickel metal having a specific heat capacity of Cp = 0.826 J/ g degrees C. The final ...
September 30, 2007 by Kate

Chemistry
A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50 degrees celsius. The bomb is constructed of 285.0 g of nickel metal having a specific heat capacity of Cp = 0.826 J/ g degrees C. The final ...
September 30, 2007 by Kate

Chemistry
Why is the solubility of butane 6.1 mg / 100 g water, yet hexane is immiscible in water?
November 6, 2013 by Ali

Chemistry
Consider the following thermochemical equation for the combustion of acetone (C3H6O), the main ingredient in nail polish remover: C3C6O + 4 O2 --> 3 CO2 + 3H2O DELTA Hrxm= -1790kJ If a bottle of nail polish remover contains 183 mL of acetone, how much heat would be released...
March 19, 2012 by Ashley

chemistry
how many grams of CO2 are produced when 88 grams of O2 are reacted with an excess of butane?
April 22, 2014 by Anonymous

Chemistry
Which one of these has the smallest # of hydrogen atoms? a) Butyne b) Butane c) Butyne d) Cyclobutane Is the answer c)?
November 24, 2010 by Lindsay

Chemistry
Can someone PLEASE help me with this???? I am soooo confused with this problem!!! Combustion reactions involve reacting When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (-2341 ...
October 26, 2009 by Natalie

chemistry
what volume of oxygen gas is needed to completely combust 0.202 L of butane (C4H10) gas?
April 8, 2010 by mary

chemistry
what volume of oxygen gas is needed to completely combst 0.202L of butane (c4h10)gas?
May 20, 2011 by elisa

chemistry
the thermochemical equation for th edissocation of hydrogen gas into atoms may be written : h2-> 2H delta H 1824.2 what is the ration of the energy yield on combustion of hydrogen atoms to steam to yield ion combustion of an equal mass of hydrogen molecules to steam given ...
March 4, 2012 by Court

Chemistry
Constant-volume calorimeters are sometimes calibrated by running a combustion reaction of known ΔE and measuring the change in temperature. For example, the combustion energy of glucose is 15.57 kJ/g. When a 2.500 g sample of glucose burns in a constant volume calorimeter...
October 23, 2014 by Kales

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+balancing equation tips
We are on combustion reaction at the moment in chemistry, and I have to say, these reactions are like extremely hard to balance(well, just alot of erasing). It takes me a while to balance combustion reactions and I want to know if theres any tips in balancing them? Should I ...
February 19, 2009 by Chopsticks

Chemistry
When 0.3212g of glucose was burned in bomb calorimeter of calorimeter constant 641J/K, the temperature rose by 7.943 K. Calculate a) the standard molar internal energy of combustion b) the standard enthalpy of combustion and c) the standard enthalpy of formation of glucose. (...

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

college Chemistry
Why was there condensation of the beaker of cold water when a blue flame was passes underneath? This experiment is from the Gas Burner experiment. A) the product of carbon dioxide from combustion (B) the product of hydrogen dioxide from combustion (C) left over unburned oxygen...
December 5, 2010 by Ivy

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

Chemistry
When 0.340 mol of butane, C4H10, are burned with excess oxygen giving CO2 and H2O, how many moles of oxygen are consumed?
September 9, 2011 by Aha

Science
Assume you can heat water with perfect insulation (all the heat from combustion of ethanol is transferred to water). What is the volume of ethanol required to heat 100 mL of water by 10 degrees C? (You will need to look up density of ethanol, specific heat capacity or water, ...
March 21, 2013 by Alexandra

Chemistry
Assume that the complete combustion of one mole of ethanol to carbon dioxide and water liberates 1370 kJ/mol (?G°\' = –1370 kJ/mol). If the energy generated by the combustion of ethanol is entirely converted to the synthesis of a hypothetical compound X, calculate the number ...
January 27, 2014 by Royzel

I have posted responses to your question on propane/butane and the Fe/Al problem below. They are about a page down from this post.
October 17, 2014 by DrBob222

Chemistry
Thank you for being helpful in the check my interpretation of the three word problems below,and,let me know if I'm on the right track? Determine the mass of water vapor formed when 1.00g of Butane (C4H10)
November 3, 2010 by Cliff

chemistry
An unidentified compound (A) was reacted with bleach using the same experimental protocol as that performed in the lab. Molecule B was formed. Answering the questions below should allow you to interpret the following information in order to determine the structures of A and B...
June 15, 2011 by Anonymous

chem expirement!
You are required to design an experiment to test Hess's law using the combustion of ethanol. Write a brief design for this experiment. What I wrote as my answer: Hess’ Law: is the algebraic addition of chemical equations yields a net equation whose enthalpy of reaction is the ...
May 17, 2007 by rob

Chemistry
2. When a 1.000 g sample of the rocket fuel hydrazine, N2H4, is burned in a bomb calorimeter which contains 1200g of water, the temperature rises from 24.62C to 28.16C. If the C for the bomb is 840 J/C Calculate: q reaction for combustion of a one-gram sample and q reaction ...
March 8, 2011 by Johnny

Chemistry
6. Heat of combustion is the heat released by the complete combustion of one mole of a substance.- T? 7. Catalysts are not consumed during a reaction.- F 8. In nature, processes tend to occur that lead to a higher energy state.- F 9. Concentration does not have an effect on a ...
October 28, 2010 by mysterychicken

Chemistry
6. Heat of combustion is the heat released by the complete combustion of one mole of a substance.- T? 7. Catalysts are not consumed during a reaction.- F 8. In nature, processes tend to occur that lead to a higher energy state.- F 9. Concentration does not have an effect on a ...
October 28, 2010 by mysterychicken

Chemistry- Empirical Formula
Aniline, consists of C, H, and N. Combustion of such compounds yields CO2, H2O, and N2. If the combustion of 9.71 mg of aniline yields 6.63 mg H2O and 1.46 mb N2, what is the empirical formula? What is the molecular formula of a compound with the molecular weight of 372.504 ...
April 19, 2010 by Akira

chemistry
Calculate the partial pressure (in atm) of propane in a mixture that contains equal weights of propane (C3H8) and butane (C4H10) at 18°C and 746 mmHg
November 21, 2011 by Anonymous

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

Chemistry
2) What is the empirical formula of a compound containing C, H, O if combustion of 1.23g of the compound yields 1.8g CO2 and .74g of H2O 3) What are the empirical and molecular formulas of a hydrocarbon if combustion of 2.10g of the compound yields 6.59g CO2 and 2.7g H20 and ...
April 10, 2014 by Annabelle

Science
Is the molar enthalpy of combustion of pentane the same as the molar enthalpy of formation of pentane? No. The molar enthalpy for the combustion is for the reacton C5H10 + (15/2)O2 ==> 5CO2 + 5H2O The molar enthalpy for the formaton is 5C(graphite) + 5H2(g) ==> C5H10(l) ...
September 21, 2006 by B

Chemistry
The combustion of carbon monoxide is represented by the equation below: CO (g) + 1/2O2 (g) ----> CO2 (g) a) determine the value of the standard enthalpy change, for the combustion of CO at 298 K using the following info. C (s) + 1/2 O2(g) ----> CO (g) delta H at 298K = -...
October 9, 2007 by Nick

Combustion
In a combustion reaction, do the products or the reactants store more energy? It is the products right? As heat energy goes into the products. Potential energy is greater in the reactants. Heat is lost in the reaction, so the products have lower energy. Imagine wood before it ...
March 2, 2007 by Steve

Chemistry
A 4.5 g piece of magnesium ribbon undergoes combustion in air to produce a mixture of two ionic solids, MgO and Mg3N2. Water is added to this mixture. It reacts with the magnesium oxide to form 9.97 g of magnesium hydroxide. Assume all reactions go to completion. A) write a ...
October 13, 2010 by Doris

Chemisty
Hydrocarbons are important fuel that we burn for many different reasons. a. what is a hydrocarbon? b. rank these hydrocarbons by the number of carbons the contain: propane, methane, butane, octane, ethane.
March 11, 2014 by Jaclyn

chem experiment:
You are required to design an experiment to test Hess's law using the combustion of ethanol. Write a brief design for this experiment. What I wrote as my answer: Hess’ Law: is the algebraic addition of chemical equations yields a net equation whose enthalpy of reaction is the ...
May 17, 2007 by rob

chemistry
Combustion analysis, Empirical and Molecular formulas, help!? When 2.686 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 9.224 grams of CO2 and 1.511 grams of H2O were produced. In a separate experiment, the molar mass of the compound was found to...
September 7, 2011 by Sazon

Chemistry
The combustion of carbon disulfide in the presence of excess oxygen yields carbon dioxide and sulfur dioxide: CS2(g)+3O2(g)--->CO2(g)+2SO2(g) The combustion of 17.2 g of CS2 in the presence of excess oxygen yields __________ g of SO2.
December 11, 2010 by Dante

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