Question

How many atoms are in 15.0 moles of C2H6O

Answer 1

1 mole = 6.22 x 10^23 molecules (Avogadro's number)
15 moles x (6.22 x 10^23) = 9.33 x 10^24 atoms

Answer 2

Answer:
`813.1* 10^(23)` atoms.

Step-by-step explanation:

According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number
`6.023* 10^(23)` of particles.

1 molecule of
`C_2H_6O` contains = 9 atoms

1 mole of
`C_2H_6O` contains =
`9 * 6.023* 10^(23)=54.21* 10^(23)` atoms

Thus 15 moles
`C_2H_6O` contains =
`(54.21* 10^(23))/(1)* 15=813.1* 10^(23)` atoms.

Thus the answer is
`813.1* 10^(23)` atoms.