Answer:
2.26 X10^24 carbon atoms
Explanation:
The number of carbon atoms in 45.21g C
carbon has an atomic mas of 12.01 gm
45.21 g has 45.21/12.01 = 3.76 moles of C
a mole contains Avogadros number of particles
6.022 X 10^23
3.76 moles contain 3.76 X6,022 X 10^23 =
2.26 X10^24 carbon atoms
