A) \[6.023\times {{10}^{23}}\]
B) \[\frac{1}{9.108}\times {{10}^{31}}\]
C) \[\frac{6.023}{9.108}\times {{10}^{54}}\]
D) \[\frac{1}{9.108\times 6.023}\times 108\]
Correct Answer: D
Solution :
| [d] Mass of one electron \[=9.108\times {{10}^{-31}}\,\text{kg}\] |
| 1 kg contain \[=\frac{1}{9.108\times {{10}^{-31}}}\] electron |
| \[=\frac{1}{9.108\times {{10}^{-31}}}\times \frac{1}{6.023\times {{10}^{23}}}\] moles of electron |
| or |
| \[\frac{1}{9.108\times 6.023}\times {{10}^{8}}\] moles |
You need to login to perform this action.
You will be redirected in
3 sec
