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methane

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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 500. mL at 744. torr and 22. °C, how many grams of methane are in the sample?

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 100. mL at 754 torr and 21.2 °C, how many grams of methane are in the sample?

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?

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

Physics
Suppose a distant world with surface gravity of 7.12 m/s2 has an atmospheric pressure of 7.48 104 Pa at the surface. (a) What force is exerted by the atmosphere on a disk-shaped region 2.00 m in radius at the surface of a methane ocean?________N (b) What is the weight of a 10....

Chemistry
One mole of methane has a mass of 16.0 grams. 1000cm3 of methane have a mass of 0.174 g. What is the correct expression for calculating the volume of 1 mole of methane?

chemistry
A sample of methane gas, CH4, was collected over water at 25.0ºC and 800 torr. The volume of the wet gas is 4.36 L. What will be the volume of the dry methane at standard pressure? Voldry methane=_______L

PHYSICS PLEASE HELP
Suppose a distant world with surface gravity of 7.12 m/s2 has an atmospheric pressure of 7.48 104 Pa at the surface. (a) What force is exerted by the atmosphere on a disk-shaped region 2.00 m in radius at the surface of a methane ocean?____________N (b) What is the weight of a...

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...

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...

PHYSICS
Suppose a distant world with surface gravity of 7.12 m/s2 has an atmospheric pressure of 7.48 104 Pa at the surface. (a) What force is exerted by the atmosphere on a disk-shaped region 2.00 m in radius at the surface of a methane ocean? ________N (b) What is the weight of a 10...

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 ...

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 ...

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.

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?

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) -->...

Chemistry
Methane (CH4) is the major component of natural gas. 2.5 moles of methane were placed in a commercial colorimeter and subjected to a combustion reaction. The reaction released 2800 kJ of energy. Compare this energy value to the energy values of paraffin and diethylene glycol. ...

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 ...

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 ...

Chemistry
What volume of “wet” methane would have to be collected at 20.0 oC and 760.0 torr to be sure the sample contained 2.00 x 102 ml of dry methane at the same temperature and pressure ? My Work: All I have so far is that I use P1V1=P2V2 but I don't know the difference between ...

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...

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

Chemistry
A 6.0g of methane decomposes into 4.5g of Carbon and 1.5g of Heydrogen. Determine the empirical formula of methane.

chemistry
a sample of methane contain 4.5x10 the power of24 h atom.calculate the mass methane

Chemistry
Compute the approximate density of methane, CH4, at 20oC and 5.00 atm. The molecular weight of methane is 16.0.

Chemistry
With the combustion of methane, CH4, If 150 Liters of carbon dioxide are produced, how many grams of methane required?

Chemistry
Hi, i would like to know how hydrogen can be manufactured from methane using a nickel catalyst. What must be added to methane in the reaction? +Ni CH4 + ??? -----> H2 + ???

Science (chemistry)
If 1mile of methane(CH4) is releases 890 kJ/mole, how much energy is released per gram of methane?

chem
Methane is oxidized to water and carbon dioxide in a process, in which 10 % of the methane is converted to CO and 20 % is converted to formaldehyde. What is the yield of the process? How much methane do you need to produce a kg of formaldehyde? How much oxygen is needed in the...

Chemistry
Methane, CH4 is the main component of natural gas which is used for cooking in many homes. The molar heat of combustion of methane is -890kj/mol. A cook wants to boil some water on a gas stove. If the stove burns 5.00g of methane to heat 2575 ml of water, what is the ...

chemistry
A bacterial culture isolated from sewage produced 35.5 mL of methane, CH4, at 31oC and 1 atm. What is the volume of this methane at standard temperature and pressure?

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?

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

Bio physics chemistry pre medical
Methane react with steam to form h2 and co. . what volume of h2 can be obtained from 100cmcube of methane at the standard temperature and pressure? ?

Bio physics chemistry pre medical
Methane react with steam to form h2 and co. . what volume of h2 can be obtained from 100cmcube of methane at the standard temperature and pressure? ?

Chemistry
If 6.0 liters of methane react with 12.0 liters of oxygen according to the equation CH4 + 2O2 → CO2 + 2H2O, and the temperature and the pressure are kept constant, which of the following is true? a. All the methane and oxygen react. b. Oxygen is in excess. c. Methane is ...

chemistry
A mixture og gases has a total pressure off 28.3 atm, it is made of: 5.8 atm of hydrogen gas, 7.2 atm of nitrogen gas, 3.5 atm of oxygen gas and some amount of methane. What is the pressure of methane? what is the pressure of methane in kPa?

Chemistry
If the methane contained in 3.50L of a saturated solution at 25 ∘C was extracted and placed under STP conditions, what volume would it occupy? Solubility of methane is 1.3 millimolar

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,...

chem help
The reaction of methane and oxygen yields carbon dioxide gas and water. The unbalanced reaction is as follows: CH4(g) + O2(g)CO2(g) + H2O(g) A. If 1.26 grams of methane are reacted, how many grams of water vapor are produced? B. If 2.796 grams CO2 are released, how many grams ...

chemistry
Compare the chemical composition of methane and ethanol to carbon dioxide. Which one can be said to be the complete oxidation of glucose? I thought is was methane but I got it wrong can you explain please.

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...

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...

Chemistry
There is a balloon filled with methane,CH4. If the mass of the methane is 68.34g, what is the volume of the balloon at 0.805 atm and a temperature of -10*C?

Chemistry
Methane and diamond have covalent bonds.Explain why methane is a gas and diamond is a solid at room temperature.

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...

Chemistry
A 5.00 g mixture of methane (CH4) and ethane (C2H6) is combusted in oxygen gas to produce carbon dioxide and water. If 14.09 g of CO2 is produced, how many grams of methane was in the original 5.00 g mixture ?

chemistry
1)The reaction of methane and oxygen yields carbon dioxide gas and water. The unbalanced reaction is as follows: CH4(g) + O2(g)CO2(g) + H2O(g) A. If 0.718 grams of methane are reacted, how many grams of water vapor are produced? B. If 1.621 grams CO2 are released, how many ...

Algebra 1
A science teacher has supply of 50% methane solution and a supply of 80% methane solution.How much of each solution should the teacher mix together to get 105 mL of 60% methane solution for an experiment. a. 70 mL of the 50% solution and 35 mL of the 80% solution b. 35 mL of ...

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

Chemistry
64g of oxygen reacts completely with methane gas to form 44g of carbon dioxide gas and 36 g of water vapour. Calculate the amount of methane that takes part in the reaction .

Chemistry
In the lab, 5.8 L of methane gas is burned with excess oxygen gas at SATP. How much carbon dioxide gas is produced? **Based on the balanced chemical equation the ratio of methane gas to carbon dioxide is 1:1, this being said, does it make sense that as 5.8 L of methane gas is ...

Chemistry
The burning of methane in oxygen is a highly exothermic reaction. Yet a mixture of methane and oxygen gas can be kept indefinitely without any apparent change. Can someone give me an explanation behind this?

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

Thermodynamics
Methane gas, CH4, burns in air and releases 192 kcal/mol. Assuming a 90%-efficient heat transfer, what mass (in kg) of ice at -17.8C can be converted to water at 37.8C by burning 500 liters of methane measured at 20.56C and 1 atm?

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...

Chemistry
One proposed design for a Mars rover uses a methane gas fuel cell as its power supply. The methane fuel can be made on Mars using a chemical reaction that has been known for over 100-a the Sabatier methanation reaction: C02(g) + 4H2(g)<--> CH4(g) +2H2O(g) Enthalpy change...

chemistry
The following equation represents the partial combustion of methane, CH4. 2CH4(g) + 3O2(g) > 2CO(g) + 4H2O(g) At constant temperature and pressure, what is the maximum volume of carbon monoxide that can be obtained from 3.39 x 102 L of methane and 1.70 x 102 L of oxygen?

chemistry
A 6.0 L flask contains a mixture of methane, argon and helium at 45 degrees C and 1.75 am. If the mole fractions of helium and argon are 0.25 and 0.35, respectively, how many molecules of methane are present?

chemistry
If 8.00g of methane is burned with 6.00g of oxygen. How much methane,oxygen,carbon dioxide,and water remain after the reaction is complete in grams?

Chemistry
Methane has one carbon and by mass there are three grams of carbon for every gram of hydrogen. How many hydrogen atoms does methane molecule have show work

chemistry
The volume of a sample of dry methane (CH4) collected at 25°C 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.

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

chemistry.
Methane, CH4 burns in oxygen gas to form carbon dioxide and water. How many moles of carbon dioxide will be formed from 8.0g of methane?

chemistry (science)
What volume of methanol is formed if 2.86×10^11 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.

Chem
The molecules water (H2O) and methane (CH4) have similar masses, but methane changes from a gas to a liquid at -161°C. Water becomes a gas at 100°C. What could account for the differences?

chem help
A sample of methane gas, CH4 was collected over water at 25 degrees celcius and 720 torr. The volume of the wet gas is 2.50L. What will be the volume of the dry methane at a standard pressure?

chemistry help!
A sample of methane gas, CH4 was collected over water at 25 degrees celcius and 720 torr. The volume of the wet gas is 2.50L. What will be the volume of the dry methane at a standard pressure?

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?

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

CHEMISTRY
a gas mixtuer consists of equal masses of methane(molecular weight 16.0) and argon (atomic weight 40.0) if the partial pressure of argon is 26.6 kPa, what is that of methane in the same units? 10.7 26.7 66.7 34.1 I am going with 26.7 Do you agree and why please Thanks Andy

Chemistry
CH4+2O2-->CO2+2H2O How many Liters of carbon dioxide will be produced at 24 degrees celcius and 725mm Hg from the combustion of a 15.0 gallon tank of methane? How much energy is associated with combusting a 15.0 gallon tank of methane?

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

chemistry
What happens when you have a mixture of CO2 hydrate and methane hydrate when the temperature is 2.5 C and the pressure is 2 MPa. Does the methane come off and the CO2 hydrate remain

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

chemistry
A 100 L flask contains a mixture of methane and argon gasses at 25 degree C . The mass of argon present is 228 g and the mole fraction of methane in the mixture is 0.650 . calculate the total kinetic energy of gaseous mixture

chemistry
Dr bob can you help with my last question for tonights home work please A gas mixture consists of equal parts of methane(molecular weight 16.0) and argon (atomic weight40.0). if the partial pressure of argon is 26.6 kPa what is that of methane in the same units? 10.7 26.7 66.7...

Chemistry
In an experiment, you fill a heavy walled 5.00 L flask with methane gas, CH4. If the flask contains 7.13g of methane at 19 degrees C, what is the gas pressure. Use the ideal gas law. Can some one help me get started on this problem please

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.

Chemistry
The molecules water (H2O) and methane (CH4) have similar masses, but methane changes from a gas to liquid at -161 degrees C. Water becomes a gas at 100 degrees C. what could account for the difference?

CHEMISTRY: URGENT
30cm^3 of a mixture of methane and ethane were mixed with 100cm^3 of oxygen at ordinary temperature and pressure and exploded. After cooling the residual gases occupied 61.5cm^3. Find the percentage by volume of each gas in the mixture, methane (CH4) and ethane(C2H6).

chemistry
Suppose you have a mixture of hydrogen and methane (CH4) gases that are at equilibrium. What is the ratio of the average speed of the methane (CH4) relative to the hydrogen ? Express the answer as a fraction (e.g. 0.621). I know that im suppose to use the e=1/2mv2 but i don't ...

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

Astronomy
Which of these gasses are outgased by our volcanic eruptions? a)oxygen, methane,ammonia b)carbon dioxide, water vapor, oxygen c)ammonia, water vapor, oxygen d) water vapor, methane, carbon dioxide e)helium, carbon dioxide, methane

chemistry
a typical alberta home heated with natural gas assume methane CH4 (g) consuems 2.00ML of natural gas during the month of December. What volume of oxygen at SATP is required to burn 2.00ML of methane measured at 0 degrees and 120 kPa? the answer is 2.62ML but i do not know how ...

chemistry
a.Write the balanced chemical equation for the reaction of methane and sulfur. (Type your answer using the format CO2 for CO2. Use the lowest possible coefficients.) 1CH4 + 4S --> 1CS2 + 2H2S (b) Calculate the theoretical yield of carbon disulfide when 240. g of methane is ...

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

chemistry
A closed container has a mixture of methane, CH4, ethane C2H6, and propane C3H8. If 12.5 g of methane, 36.0 g of ethane, and 14.0 g of propane have a total pressure of 890. mm Hg, what is the partial pressure of each of the gases in the container?

Chemistry
A gas mixture consists of equal masses of methane (molecular weight 16.0) and argon (atomic weight 40.0). If the partial pressure of argon is 200. torr, what is the pressure of methane, in torr?

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....

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

bilogy
methane which is composed of carbon and hydrogen, lacks fuctional groups and is a gas at room temperature.upon replacing one of the hydrogen atoms with a hydroxyl group, methane is converted to a liquid called methanol at room temperature. please explain to me the reason ...

Chemistry
When methane is combusted with excess oxygen 891 kJ of energy is produced start with 100g of methane. how much energy is produced? is this reaction endothermic or exothermic? Also provide enthalpy change for this reaction: CH4 + 2O2 (arrow)= CO2 + H2O + 891 kJ

CHEMISTRY
A mixture of methane and helium is placed in a 2.0 l flask at 27 degrees the partial pressure of methane is 0.72 ATM and the partial pressure of helium is 0.22 ATM . What is the mole fraction of ch4?

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...

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?

science
a mixture of gases contains 64g of methane, 64g of oxygen and 64g of sulphur dioxide. The pressure of the mixture is 210 kpa. what is the partial pressure (in kpa) of the methane expected to be?

chemistry
ionic componuds tend to have higher boiling points than covalent compounds . both ammonia NH3 and methane CH4 are covalent compounds but yet the boiling point of ammonia 130C is higher than methane. what might account for this difference please help thank you

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 ...

CHEMISTRY
carbon monoxide can be prepared by the reaction of steam with methane. CH4(g) + H2O(g) = CO(g) + 3H2(g) If 10g of methane is allowed to react with 10g of steam which of the reactants would be described as limiting. What is the theoretical yield of carbon monoxide if 10g of ...

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