How many atoms of C are contained in 45.6g of C6H6?
Was there math involved in this or do you just look at the subscripts?
I just looked at it
atomsC=6(molesHexane)
To determine the number of atoms of carbon (C) in 45.6g of C6H6 (benzene), you need to follow these steps:
1. Find the molar mass of C6H6:
- Carbon (C) has a molar mass of approximately 12.01 g/mol.
- Hydrogen (H) has a molar mass of approximately 1.01 g/mol.
- Multiply the molar mass of carbon by 6 and the molar mass of hydrogen by 6, then add them together:
Molar mass of C6H6 = (6 * 12.01 g/mol) + (6 * 1.01 g/mol) = 78.11 g/mol.
2. Determine the number of moles of C6H6:
- Divide the given mass by the molar mass:
Moles of C6H6 = 45.6 g / 78.11 g/mol ≈ 0.584 mol.
3. Calculate the number of moles of C:
- Since there are 6 carbon atoms in each C6H6 molecule, multiply the number of moles of C6H6 by 6:
Moles of C = 0.584 mol * 6 = 3.504 mol.
4. Convert the moles of C into the number of atoms:
- Use Avogadro's number, which states that 1 mole of any substance contains about 6.022 x 10^23 particles (atoms, molecules, etc.).
- Multiply the number of moles of C by Avogadro's number:
Number of atoms of C = 3.504 mol * 6.022 x 10^23 atoms/mol ≈ 2.109 x 10^24 atoms of C.
Therefore, there are approximately 2.109 x 10^24 atoms of carbon (C) in 45.6g of C6H6.
How many moles of Hexane are in 45.6g?
There are six atoms of C for each molecule of hexane.