if we combust 4.23 x 10^24 molecules of propane how many grams of carbon dioxide and water you will produce ?
This is the usual stoichiometry problem. Follow this example. You will need to convert molecules of propane to moles. moles propane = 4.23E24/6.02E23 = ?
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To determine the amount of carbon dioxide (CO2) and water (H2O) produced when combusting propane, we need to understand the chemical formula of propane and the balanced equation for its combustion.
The chemical formula for propane is C3H8, which means each molecule of propane contains 3 carbon atoms and 8 hydrogen atoms.
The balanced equation for the combustion of propane is as follows:
C3H8 + 5O2 → 3CO2 + 4H2O
From the equation, we see that for every molecule of propane (C3H8), we need 5 molecules of oxygen (O2) to produce 3 molecules of carbon dioxide (CO2) and 4 molecules of water (H2O).
Given that we have 4.23 x 10^24 molecules of propane, we can calculate the corresponding amounts of carbon dioxide and water produced by following these steps:
Step 1: Calculate the number of oxygen molecules required.
Since each molecule of propane requires 5 molecules of oxygen, the total number of oxygen molecules needed can be calculated by multiplying the number of propane molecules by 5:
4.23 x 10^24 molecules of propane × 5 molecules of O2/molecule of propane
Step 2: Calculate the number of carbon dioxide molecules produced.
From the balanced equation, we know that for every 3 molecules of carbon dioxide produced, we need 1 molecule of propane. Therefore:
Number of CO2 molecules = (4.23 x 10^24 molecules of propane × 3 molecules of CO2/molecule of propane)
Step 3: Calculate the number of water molecules produced.
From the balanced equation, we know that for every 4 molecules of water produced, we need 1 molecule of propane. Therefore:
Number of H2O molecules = (4.23 x 10^24 molecules of propane × 4 molecules of H2O/molecule of propane)
Step 4: Convert the number of molecules to grams.
To convert the number of molecules to grams, you need to know the molar mass of carbon dioxide (CO2) and water (H2O). Carbon dioxide has a molar mass of approximately 44 grams/mole, while water has a molar mass of about 18 grams/mole.
Using these molar masses, you can convert the number of molecules into grams:
Mass of CO2 = (Number of CO2 molecules × molar mass of CO2)
Mass of H2O = (Number of H2O molecules × molar mass of H2O)
By following these steps, you can calculate the grams of carbon dioxide and water produced when combusting the given number of propane molecules.