Question

Calculate the no. of molecules present in 880 g of CO2. (1M)​

Answer 1

Answer:

Gram molecular weight of CO  

2

​  

 = 12+2 × 16 = 44g.

Now, 44g of CO  

2

​  

 contains 6.023×10  

23

 molecules.

∴ 11g of CO  

2

​  

 contains  =  

44

6.023×10  

23

×11

​  

 = 1.51×10  

23

 molecules.

Explanation:

Answer 2

Answer:

Explanation:

880gCO  

2

​  

= 2 moles of CO  

2

​  

. One molecule consists of 2 oxygen atoms.  

No. of oxygen atoms =2×2×6.02×10  

23

=24.08×10  

23

 

CO molecule has one oxygen atom.  

Mass of CO containing 24.08×10  

23

 oxygen atoms  

=  

6.02×10  

23

 

28

​  

×24.08×10  

23

=1120g