Number of moles in 2kg  electrons ?

Asked by Virenpareek3 | 23rd Nov, 2019, 04:13: PM

Expert Answer:

Given:
 
Mass of electron = 2 kg
 
Mass of electron = 9.1 ×10-31 kg
 
1 mole of electrons = 6.022×1023 
 
Mass of 1 mole of electrons = 9.1 ×10-31 × 6.022×1023  
 
No. of moles in 2 kg of electrons = 2/ (9.1 ×10-31 × 6.022×1023)
 
                                                = 3.649×10-6 mol 
 
 
 
 

Answered by Varsha | 23rd Nov, 2019, 04:58: PM