What mass of carbon dioxide results from combustion of a #52*g# mass of acetylene gas?
We needs a stoichiometric equation, and we finally get a mass of
And the typical rigmarole is to balance the carbons, and then the hydrogens, and then finally the oxygens.............
Is this balanced? Don't trust my 'rithmetic!
And thus, moles of acetylene reactant:
Would this reaction be exothermic? Why or why not?
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The balanced equation for the combustion of acetylene (C2H2) is:
2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(g)
Using the stoichiometry of the equation, we find that for every 2 moles of C2H2 consumed, 4 moles of CO2 are produced.
First, convert the mass of acetylene (C2H2) to moles using its molar mass. Molar mass of C2H2 = 212.01 g/mol + 21.01 g/mol = 26.04 g/mol Number of moles of C2H2 = mass / molar mass = 52 g / 26.04 g/mol = 2 moles
Now, since 2 moles of C2H2 produce 4 moles of CO2, we use this ratio to find the moles of CO2 produced. Moles of CO2 produced = 2 moles C2H2 * (4 moles CO2 / 2 moles C2H2) = 4 moles
Finally, convert moles of CO2 to mass using its molar mass. Molar mass of CO2 = 12.01 g/mol + 2*16.00 g/mol = 44.01 g/mol Mass of CO2 produced = moles * molar mass = 4 moles * 44.01 g/mol = 176.04 g
So, the mass of carbon dioxide resulting from the combustion of a 52 g mass of acetylene gas is 176.04 g.
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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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