Question

Calculate the number of molecules in 88g of CO2

Answer 1

The number of molecules in 88g of $CO_2$ is equal to $24.088\times 10^2^3$.

Explanation:

• The molar mass of $CO_2$ is given to be addition of the molar masses of one carbon atom and two oxygen atoms.

• That is equal to $12 + 16 \times 2$ which gives us 44g.

• Therefore 44g is one mole of $CO_2$ which means that 88g will be two moles of $CO_2$.

• This also means that if one mole of $CO_2$ has two moles of $O_2$ then two moles of $CO_2$ will have four moles of $O_2$.

• Therefore in order to find out the "total number of atoms" of $CO_2$, we have to multiply the total number of the moles present with the Avogadro number.

• $4 \times 6.023\times 10 ^ 2^3,$ this value gives us $24.088 \times10^2^3$ which is the number of molecules in 88g of $CO_2$.

       4 moles of oxygen contains = $4\times 6.023\times10^2^3$

       = $24.092\times10^2^3$

       = $2.4092 X 10^2^4$ atoms of oxygen.

Learn more about gram to mole conversion

Convert into mole  22 g of carbon dioxide.

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Convert into mole:  12g of oxygen gas

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