Question

Is there are a total of 7.3 x 10^29 atoms in a sample of glucose, C6H12O6(s),what amount in miles of glucose is in the sample?

Answer 1

Answer : The moles of glucose in the sample is
`5.05* 10^4moles`.

Solution : Given,

Total number of atoms in a sample of glucose =
`7.3* 10^(29)atoms`

As per the question, 1 mole of glucose molecule contains 6 atom of carbon, 12 atom of hydrogen and 6 atom of oxygen.

Total number of atoms in glucose = 6 + 12 + 6 = 24 atoms

As we know,

1 mole contains
`6.022* 10^(23)atoms`

and 1 mole of glucose contains
`6.022* 10^(23)* 24 atoms`

or we can say that,

`6.022* 10^(23)* 24 atoms` will make 1 mole of glucose molecule

`7.3* 10^(29)atoms` will make
`(1mole)/(6.022* 10^(23)* 24 atoms)* 7.3* 10^(29)atoms=5.05* 10^4moles` of glucose molecule

Therefore, the moles of glucose in the sample is
`5.05* 10^4moles`.