What mass of water results from combustion of an #8.0*mol# quantity of #"methane gas"#?
Under
We need a stoichiometrically balanced equation to represent the combustion:
The stoichiometry dictates that for each mole of methane, 2 moles of water are evolved.
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To find the mass of water produced from the combustion of methane gas, we use the balanced chemical equation for the combustion of methane:
CH₄ + 2O₂ -> CO₂ + 2H₂O
From the equation, we see that for every one mole of methane combusted, two moles of water are produced.
Given that we have 8.0 moles of methane gas, we can calculate the moles of water produced:
Moles of water = 8.0 mol * 2 mol H₂O / 1 mol CH₄ = 16.0 mol H₂O
Now, we use the molar mass of water to convert moles to grams:
Molar mass of H₂O = 18.015 g/mol
Mass of water produced = 16.0 mol * 18.015 g/mol = 288.24 g
So, the mass of water resulting from the combustion of 8.0 moles of methane gas is approximately 288.24 grams.
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To determine the mass of water produced from the combustion of 8.0 mol of methane gas (CH4), you use the balanced chemical equation for the combustion of methane:
CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)
From the balanced equation, you can see that for every 1 mol of CH4 combusted, 2 mol of H2O are produced. Therefore, for 8.0 mol of CH4, the number of moles of water produced is:
8.0 mol CH4 × (2 mol H2O / 1 mol CH4) = 16.0 mol H2O
Now, to find the mass of water produced, you use the molar mass of water (H2O), which is approximately 18.02 g/mol.
Mass of water = Number of moles × Molar mass Mass of water = 16.0 mol × 18.02 g/mol Mass of water ≈ 288.32 g
So, approximately 288.32 grams of water are produced from the combustion of 8.0 mol of methane gas.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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