Answer:
2487.51.
Explanation:
As per Boyle's law temperature remaining constant the volume of an ideal gas is inversely proportional to its pressure.
pV= k
therefore, p1V1 = p2V2
here V1 = 25.3, p2 = 8.04mm Hg
pressure p1 = 790.5 mm Hg
this means that 
25.3×790.5 = 8.04V2
⇒V2= 2487.51 
Hence, the required volume is, 2487.51.
 
        
             
        
        
        
1.0 mole of gas at STP occupies 22.4 Litres. 
 4/0L / 22.4 L/mole = 0.179 moles He.
        
                    
             
        
        
        
The number of electrons is 20. hope this helps
        
             
        
        
        
Answer:
creo que es cinemática, eso creo 
 
        
             
        
        
        
Answer:
24 atoms makes altogether a molecule of glucose