you decide to have a BBQ in your backyard. you have 1Kg of pentane (C5H12) in the tank. What is the amount of carbon dioxide (in mass and mols) you will be contributing to the greenhouse gas effect by using up that 1Kg of pentane?
plz.... need the answer with steps...thank you
C5H12 + 8O2 -----> 5CO2 + 6H2O
i balance the equation i hope itis right.
This is a stoiciometry question!
You have the correct chemical equation already so:
First calculate the number of moles of Pentane, than use stoiciometry to figure out the number of moles of CO2 produced and finally convert it to mass using the molar mass.
Do you know how to figure out the molar mass? because i will not include that part in tha calculations.
step one: (mol of pentane/72.17 g) * 1000g = 13.86 moles of pentane.
step two: (13.86 moles of pentane) * (5 mol(CO2)/1 mol(Pentane)) = 69.28 moles of carbon dioxide.
Step three: (69.28 moles of carbon dioxide) * (44.01 g/mol) = 3.05 Kg of carbon dioxide.
Enjoy the rest of your stoiciometry!!
To determine the amount of carbon dioxide (CO2) produced by burning 1 kg of pentane (C5H12), you need to follow these steps:
Step 1: Calculate the molar mass of pentane.
To find the molar mass of pentane (C5H12), use the atomic masses of each element:
Carbon (C): 12.01 g/mol
Hydrogen (H): 1.008 g/mol
Molar mass of pentane (C5H12) = (5 * molar mass of carbon) + (12 * molar mass of hydrogen)
Step 2: Convert the mass of pentane to moles.
Moles of pentane = Mass of pentane (in grams) / Molar mass of pentane
Since we know the mass of pentane is 1 kg (1000 grams), you just need to divide it by the molar mass of pentane you calculated in step 1.
Step 3: Determine the stoichiometry of the reaction.
From the balanced equation you provided: C5H12 + 8O2 -> 5CO2 + 6H2O
You can see that for every 1 mole of pentane (C5H12) burned, it produces 5 moles of CO2 (carbon dioxide).
Step 4: Calculate the moles of carbon dioxide produced.
Moles of CO2 = Moles of pentane * (5 moles of CO2 / 1 mole of pentane)
Step 5: Calculate the mass of carbon dioxide produced.
Mass of CO2 = Moles of CO2 * Molar mass of carbon dioxide
The molar mass of carbon dioxide (CO2) can be calculated by multiplying the atomic mass of carbon (12.01 g/mol) by 1 and the atomic mass of oxygen (16.00 g/mol) by 2, then adding the two results.
Now, you can substitute the values you obtained in steps 2, 4, and 5 to find the mass and moles of carbon dioxide produced.
I hope this step-by-step explanation helps you solve the problem!