When methane (CH4) burns, it reacts with oxygen gas to produce carbon dioxide an

Question

When methane (CH4) burns, it reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reaction is CH4(g) + 02(g) rightarrow C02(g) + H20(g) This type of reaction is referred to as a complete combustion reaction. Part A What coefficients are needed to balance the equation for the complete combustion of methane? Enter the coefficients in the order CH4, 02, C02, and H20, respectively. Express your answer as four integers, separated by commas (e.g., l, 2, 3, 4). Part D What mass of oxygen is needed for the complete combustion of 3.00x10-3g of methane? Express your answer with the appropriate units. What mass of carbon dioxide is produced from the complete combustion of 3.00x10-3g of methane? Express your answer with the appropriate units. What mass of water is produced from the complete combustion of 3.00x10-3g of methane? Express your answer with the appropriate units.

Explanation / Answer

D)

Moles of CH4 = moles of O2/2

Mass of O2 = moles*32 = 2*(3*10^-3)*32/16 = 1.2*10^-2 g

C) Mass of Water = 2*moles of CH4 * 18 = 2*(3*10^-3)*18/16 = 6.75*10^-3 g

B) Mass of CO2 = moles*44 = 44*(3*10^-3)/16 = 8.25*10^-3 g

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