Question

How many moles are in

6.02x1023 atoms of CO2?
21.3 moles
77.2 moles
45 moles
91.2 moles
55 moles
1.0 moles
1050 moles
.012 moles

Multiple choice

Answer 1

1.0 moles

Step-by-step explanation:

we are given the number of atoms of the ionic compound, carbon dioxide (
`\rm CO_2`) which is 6.02x10²³ and we want to find the number of moles in
`\rm CO_2`.

recall that, there are approximately 6.02x10²³ atoms in a mole of any substance (which is actually Avogardro's number,
`\rm N_a=6.02214x10^(23) \: mol^(-1)` )The answer therefore can be found by dividing given the number of atoms of
`\rm CO_2` by the Avogadro's number.so, dividing the given number of atoms of
`\rm CO_2` by the Avogadro's number yields approximately 1.0

Hence,There are approximately 1.0 moles in 6.02x10²³ atoms of
`\rm CO_2.`