a sample of C3H8O that contains 200 molecules contain how many atoms?
2400 atoms
O-200 atoms
C-600 atoms
H-1600 atoms
One (1) molecule of C3H8O contains 3 atoms of C, 8 atoms of H and 1 atom of O for a total of 12 atoms. So 200 molecules would contain xxx atoms.
C3H8O is the chemical formula for isopropyl alcohol, also known as rubbing alcohol. To determine the number of atoms in a sample of C3H8O containing 200 molecules, we need to know the number of atoms in each molecule.
In the chemical formula C3H8O, the subscript 3 indicates that there are three carbon atoms (C), the subscript 8 indicates that there are eight hydrogen atoms (H), and the subscript 1 indicates that there is one oxygen atom (O) in each molecule.
So, to calculate the number of atoms in 200 molecules of C3H8O, we can multiply the number of molecules by the number of atoms present in each molecule:
Number of Carbon atoms (C) = 3 (per molecule)
Number of Hydrogen atoms (H) = 8 (per molecule)
Number of Oxygen atoms (O) = 1 (per molecule)
Total number of atoms per molecule = 3 + 8 + 1 = 12 atoms
Number of atoms in 200 molecules = 200 molecules × 12 atoms per molecule = 2400 atoms
Therefore, the sample of C3H8O containing 200 molecules would contain a total of 2400 atoms.
To determine the number of atoms in a sample of C3H8O containing 200 molecules, we need to first know the chemical formula of C3H8O, which is often written as CH3CH2CH2OH.
In this formula, we can count the number of atoms present for each element:
- There are 3 carbon (C) atoms.
- There are 8 hydrogen (H) atoms.
- There is 1 oxygen (O) atom.
To calculate the total number of atoms, we multiply the number of each element's atoms by the number of molecules in the sample.
Number of carbon atoms: 3 carbon atoms/molecule × 200 molecules = 600 carbon atoms
Number of hydrogen atoms: 8 hydrogen atoms/molecule × 200 molecules = 1600 hydrogen atoms
Number of oxygen atoms: 1 oxygen atom/molecule × 200 molecules = 200 oxygen atoms
Finally, we add up the number of atoms of each element to find the total number of atoms in the sample:
Total number of atoms = 600 carbon atoms + 1600 hydrogen atoms + 200 oxygen atoms
= 2400 atoms