chemistry conversion

Question

Please help thanks!

 

How many total atoms are there in 53.1 g of carbon monoxide (CO)?

Answer 1

How many total atoms are there in 53.1 g of carbon monoxide (CO)?

 

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Number of moles in 53.1g (co) would be:

 

N=53.1/28 = 1.896

 

Then, number of CO molecules would be:  

 

Nco =1.896*6.022*10^23 = 1.142*10^23 (  CO molecules)

 

Number of atoms (C+O) is the double of the last result:

 

N_atoms= 2.284*10^23 (Atoms)

 

 

Answer 2

53.1g x 1mol/28g x 6.02 x 10^23/1mol = 1.2 x 10^24 atoms 

 

We get the amount of grams in carbon monoxide from the periodic table. This gives us the grams per mole of each carbon monoxide molecule. We use Avagodros number to convert to the number of atoms.