1.20×1023
2.41×1023
3.62×1023
4.82×1023
Correct answer is A
1mole=6.02×1023atoms
0.2moles=6.02×1023×0.2 atoms
= 1.204×1023
≊
The substance least considered as a source of environmental pollution is ...
In the electrolytic extraction of aluminum, the function of the molten cryolite is to ...
The Kinetic theory can NOT be used to explain ...
Which of the following occurs when a solution of CuSO4 is electrolysed using copper electrodes?...
Which of the following mixture of gases is likely to burn in flame ...