Estimate charge on all the electrons in a 10g cu penny ..... plz write nd show me the answer plz it is important write now show me.
Answers
Answered by
39
The total number of electrons in an atom of Cu is 29
Given,
mass=10g
Molar mass= 63.5
Therefore,
no. of moles of Cu = 10/63.5 = 0.157
So,
total numbers of electron =0.157*6.023*1023*29 =N(let).
So,
the toal charge due to N electrons is
Qe = N*e { e is the fundamental charge =1.6*10-19}
= 0.157*6.023*1023*29*1.6*10-19
= 4.387*105 C
Given,
mass=10g
Molar mass= 63.5
Therefore,
no. of moles of Cu = 10/63.5 = 0.157
So,
total numbers of electron =0.157*6.023*1023*29 =N(let).
So,
the toal charge due to N electrons is
Qe = N*e { e is the fundamental charge =1.6*10-19}
= 0.157*6.023*1023*29*1.6*10-19
= 4.387*105 C
Answered by
6
Answer:
The answer is[4.412×105c]
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