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

Answer from: Quest

the answer is 75.0%.

Answer from: Quest

definition

entropy is a measure of the randomness or the extent of disorder of a chemical process.

enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

entropy is measured in joule per kelvin (jk⁻¹) whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.

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You know the right answer?

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

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