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natali 33 [55]
3 years ago
7

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

Chemistry
2 answers:
GenaCL600 [577]3 years ago
8 0
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
Katarina [22]3 years ago
8 0

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\times 10^{25}. Now we have to calculate the moles of CO_2 in the flask.

As, 6.022\times 10^{23} molecules of CO_2 present in 1 mole of CO_2.

So, 1.3\times 10^{25} molecules of CO_2 present in \frac{1.3\times 10^{25}}{6.022\times 10^{23}}=21.58 moles of CO_2.

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

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