A sample of C3H8O that contain 200 molecules contains ________carbon atoms??
I am still waiting to critique your work.It is time you showed your thinking.
I believe the answer is 600 carbon atoms.
Yes 600 carbons
To find the number of carbon atoms in a sample of C3H8O, we need to calculate the number of moles of C3H8O in the sample and then multiply it by the number of carbon atoms in each molecule.
1. Determine the molecular formula weight of C3H8O:
- Carbon (C) has an atomic weight of 12.01 g/mol.
- Hydrogen (H) has an atomic weight of 1.008 g/mol.
- Oxygen (O) has an atomic weight of 16.00 g/mol.
The molecular formula weight of C3H8O is calculated as follows:
(3 * 12.01 g/mol) + (8 * 1.008 g/mol) + (1 * 16.00 g/mol) = 60.1 g/mol
2. Calculate the number of moles of C3H8O in the sample:
The number of moles can be calculated using the formula:
Moles = Mass / Molecular Weight
In this case, we don't know the mass of the sample, so let's assume it is 1 gram for simplicity.
Moles = 1 g / 60.1 g/mol ≈ 0.0166 mol
3. Determine the number of molecules in 0.0166 moles of C3H8O:
Avogadro's number states that there are 6.022 x 10^23 atoms or molecules per mole.
Number of molecules = Moles * Avogadro's Number
Number of molecules = 0.0166 mol * 6.022 x 10^23 molecules/mol ≈ 9.98 x 10^21 molecules
4. Finally, multiply the number of molecules by the number of carbon atoms in each molecule:
The molecular formula of C3H8O has 3 carbon atoms in each molecule.
Number of carbon atoms = Number of molecules * Number of carbon atoms per molecule
Number of carbon atoms = 9.98 x 10^21 molecules * 3 carbon atoms/molecule = 2.994 x 10^22 carbon atoms
Therefore, a sample of C3H8O containing 200 molecules contains approximately 2.994 x 10^22 carbon atoms.