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Number of atoms in 1ml of ammonia gas at STP is??
Asked by Anjalimanoj207 | 19 Jun, 2019, 12:35: PM
answered-by-expert Expert Answer
Given:
 
Volume = 1 ml 
 
We know,
 
1 mole of ammonia = 22400 ml of NH3 
 
No. of moles of NH3 in 1 ml 
 
equals space 1 over 22400 equals space 4.46 cross times 10 to the power of negative 5 end exponent space mole
 
1 mole of NH3 conatins 6.022×1023 molecules
 
4.46×10-5 mole contains 
 
equals space 6.022 cross times 10 to the power of 23 cross times 4.46 cross times 10 to the power of negative 5 end exponent equals space 2.68 cross times 10 to the power of 19 space molecules
 
There are 4 atoms in 1 molecule of NH3 , 
 
2.68×1019 molecules NH3 will conatain,
 
equals space 2.68 cross times 10 to the power of negative 19 end exponent space cross times space 4 equals space 1.07 cross times 10 to the power of 20 space atoms space of space NH subscript 3
 
Number of atoms in 1 ml of NH3 are 1.07×100
Answered by Varsha | 20 Jun, 2019, 10:30: AM

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