Answer:
% of mass of electrons in C = 0.0272
Explanation:
Atomic no. of carbon = 6
So, no. of electron = 6
Mass of an electron = 
Mass of 6 electrons = 
Mass of C = 12.0107 u
% of mass of electrons in C = 
% of mass of electrons in C = 
C. Increases. Increasing temperature=Increasing Volume
The molar mass is 294.1527 g/mol
The answer is true the si base unit for mass is the gram