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

User Natejms
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2 Answers

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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
User Suever
by
8.4k points
4 votes

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.

User Isuruceanu
by
8.5k points

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