What is the mass of 18.066 × $10^{23}$ molecules of carbon dioxide?

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Solution

Given number of molecules/avogadro’s number= number of moles

18.066* $10^{23}$ /6.022* $10^{23}$ =3 moles

6.022 * $10^{23}$ molecules of carbon dioxide weigh 44gm

3 moles = 3*44

132gms.

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