Question

Determine the total number of atoms in one mole of CO^2 gas

Answer 1

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Moles of carbon = 1mol

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Total number of atoms =?

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Moles = Number of molecules /Avagadro number

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First of all find number of molecules of carbon

Number of molecules of Carbon dioxide = mole of carbon × avagadro numbers

Number of molecules of Carbondioxide = 1 × 6.023×10^23

Number of molecules of Carbondioxide = 6.023×10^23

So number of molecules of Carbondioxide are 6.023×10^23

As we have found out number of molecules , So now we know that ,In CO2 there are 3 atoms (1 hydrogen , 2 oxygen) , multiply number of molecules with 3 to get number of atoms .

Number of atoms in one mole of CO2 are = 6.023×10^23×3 =18.096×10^23atoms

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$\huge{\texbf{\brown{INSHALLAH IT WILL HELP U }}}$

Answer 2

Hello mate.

Thanks for asking this question.

Your answer is =>

So ,

as you know that 1 molecule of $CO_2$ contains 1 atom of Carbon and 2 atoms of Oxygen.

so,

1 molecule of $CO_2$ contains total 3 atoms .

as you know that , 1 mol of any gas contains $6.022 \times 10^{23}$ molecules.

so ,

1 mol of $CO_2$ contains $6.022 \times 10^{23}$ molecules of $CO_2$.

so ,

1 mol of $CO_2$ contains =>

$=>[6.022 \times 10^{23} \times 3 ] atoms.$

$=>18.066 \times 10^{23} atoms.$

so ,

one mole of $CO_2$ contains $\boxed {18.066 \times 10^{23}} \:atoms$



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