Grade 12Physical Chemistry

no. of atoms in 88gm of CO2 ?

vindhya

11 Years agoGrade 12

11 Answers

Avinash

11 Years ago

No. of moles = wt/GMwt =88/44 = 2

No. of atoms or moleules = 2 x Avagadro no. =2 mol x 6.022 x 10²³mol-1=12.044 x 10²³mol-1

vindhya

11 Years ago

thanks a lot. But will the no. of atoms and no.of molecules be same ?

Please let me know, sir.

Avinash

11 Years ago

Yes,no. of atoms and no.of molecules be same since it contains avagadro no of molecules or avagadro no of atoms that mutliplied with no. of moles. so the count will be equal

vindhya

11 Years ago

thanks sir

Prajwal Kavad

Approved Tutor Answer11 Years ago

there are 2 moles of CO₂ so it has 2times avagadro number of molecules and each molecule has 3 atoms therefore there are total 6xN_aatoms in 88 grams of CO₂

_{plz approve if u r satisfied}

Prajwal Kavad

11 Years ago

the answer by @avinash is wrong plz check it sir

vindhya

11 Years ago

prajwal kavad, can you please explain me how one molecule has 2 atoms.

i'll be really thankful.

And also tell me how Avinash sir is wrong?

thanks

Avinash

11 Years ago

Above ans is for monoatom
Vindhya plz check the correct one

No. of moles = wt/GMwt =88/44 = 2

No. of moleules = 2 x Avagadro no. = 2 mol x 6.022 x 10²³mol^-1 = 12.044 x 10²³

No. of atoms = (1 carbon atom + 2 oxygen atoms) x total no. of molecules
=3 x12.044 x 10²³= 36.132 x10²³