Question

A sealed flask contains 1.3 x 10^25 molecules of CO2. How many moles of CO2 are in the flask?

Answer 1

A mole of anything contains 6.022x10^23 items. so we need to divide this

1.3 x 10^25 / 6.022 x 10^23 = 21.59 moles

Answer 2

Answer : The moles of
`CO_2` in the flask are, 21.58 moles.

Solution :

As we are given the molecules of
`CO_2` in the flask are =
`1.3* 10^(25)`. Now we have to calculate the moles of
`CO_2` in the flask.

As,
`6.022* 10^(23)` molecules of
`CO_2` present in 1 mole of
`CO_2`.

So,
`1.3* 10^(25)` molecules of
`CO_2` present in
`(1.3* 10^(25))/(6.022* 10^(23))=21.58` moles of
`CO_2`.

Therefore, the moles of
`CO_2` in the flask are, 21.58 moles.