Methane, an alkane with one carbon atom covalently bonded to hydrogen, is a major componen...

Methane, an alkane with one carbon atom covalently bonded to hydrogen, is a major component of purified natural gas used for heating and cooking. When one mole of methane gas burns with oxygen to produce carbon dioxide and water vapor, 883 kJ of heat is produced. Methane gas has a density of 0.715 g/L at STP. For transport, the volume of natural gas is cooled to –163 °C, which gives liquefied natural gas (LNG) with a density of 0.45 g/mL. A tank on a ship can hold 7.0 million gallons of LNG.

a. What is the condensed structural formula of methane?

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b. What is the mass, in kilograms, of LNG (assume that LNG is all methane) transported in one tank on a ship?

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c. What is the volume, in liters, of LNG (methane) from one tank when the LNG in one tank is converted to gas at STP?

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d. Write the balanced combustion equation for the combustion of methane and oxygen in a gas burner.

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e. How many kilograms of oxygen are needed to react with all of the methane in one tank of LNG?

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f. How much heat, in kilojoules, is released from burning all of the methane in one tank of LNG?