Chemistry, 29.01.2020 06:44 hjohnsonn102010

Methane combusts with oxygen through the following reaction:
ch4 +2o2 --> co2 + 2h2o
how many grams of carbon dioxide are produced when 16.0 g of methane and 48.0 g of oxygen gas combust?

Answers: 2

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Answer from: alexciamartinez05

33g

Explanation:

To solve this problem we need to determine the limiting reagent. This is the reagent in short supply. It usually determine the extent of the reaction.

Given equation:

CH₄ + 20₂ → CO₂ + 2H₂O

Mass of methane = 16g

Mass of oxygen = 48g

Convert to number of moles;

Number of moles = $\frac{mass}{molar mass}$

molar mass of CH₄ = 12 + 4 = 16g/mol

molar mass of O₂ = 16 x 2 = 32g/mol

Number of moles of CH₄ = $\frac{16}{16}$ = 1 mole

Number of moles of O₂ = $\frac{48}{32}$ = 1.5 moles

From the equation;

1 mole of methane needs 2 mole of oxygen gas

The amount of oxygen is in short supply.

We need to 2 moles to completely burn the methane but we were given 1.5 mole

since 2 moles of oxygen produce 1 mole of carbon dioxide

1.5 mole will produce $\frac{1.5}{2}$ = 0.75mole of carbon dioxide

Mass of carbon dioxide = number of moles x molar mass

Mass of carbon dioxide = 0.75 x (12 + (2 x 16)) = 33g

learn more:

Number of moles

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Answer from: shifaxoxoxo

33g

Explanation:

To solve this problem we need to determine the limiting reagent. This is the reagent in short supply. It usually determine the extent of the reaction.

Given equation:

CH₄ + 20₂ → CO₂ + 2H₂O

Mass of methane = 16g

Mass of oxygen = 48g

Convert to number of moles;

Number of moles = $\frac{mass}{molar mass}$

molar mass of CH₄ = 12 + 4 = 16g/mol

molar mass of O₂ = 16 x 2 = 32g/mol

Number of moles of CH₄ = $\frac{16}{16}$ = 1 mole

Number of moles of O₂ = $\frac{48}{32}$ = 1.5 moles

From the equation;

1 mole of methane needs 2 mole of oxygen gas

The amount of oxygen is in short supply.

We need to 2 moles to completely burn the methane but we were given 1.5 mole

since 2 moles of oxygen produce 1 mole of carbon dioxide

1.5 mole will produce $\frac{1.5}{2}$ = 0.75mole of carbon dioxide

Mass of carbon dioxide = number of moles x molar mass

Mass of carbon dioxide = 0.75 x (12 + (2 x 16)) = 33g

learn more:

Number of moles

#learnwithBrianly

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Answer from: Quest

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Methane combusts with oxygen through the following reaction:
ch4 +2o2 --> co2 + 2h2o

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