How many atoms are in 9.00 grams of carbon 13?

Answer 1

9.00 grams carbon 13 ( 1 mole C13/13.00355 grams)(6.022 X 1023/1 mole C13)

= 4.17 X 1023 atoms of carbon 13

-------------------------------------------

Answer 2

There are approximately 6.022 x 10^23 atoms in 12 grams of carbon-12 (Avogadro's number). Since carbon-13 has one more neutron, it will have a slightly lower number of atoms than carbon-12 per unit mass. Therefore, there will be slightly fewer atoms in 9.00 grams of carbon-13 compared to carbon-12, but the difference is negligible.

Answer 3

0.231moles of 13C

Answer 4

9/13