Answer:
3.49×10²³ atoms of C
Explanation:
Given data:
Mass of C₂H₆O = 13.5 g
Number of atoms of carbon = ?
Solution:
First of all we will calculate the number of moles of C₂H₆O
Number of moles = mass/molar mass
Number of moles = 13.5 g/46.07 g/mol
Number of moles = 0.29 mol
1 mole of C₂H₆O contain = 2 mol of C
0.29 mol× 2 = 0.58 mol
Now we will calculate the number C atoms.
1 mole = 6.022×10²³ atoms
0.58 mol×6.022×10²³ atoms / 1 mol
3.49×10²³ atoms of C
