Question

State and explain term molar mass

Answer 1

molar mass of molecules is defined as the sum of atomicity * atomic mass.
example H2SO4= molarmass= 
Atomicity of H=2 atomic mass -1   so 1*2 =2
Atomicity of S=1 atomic mass -32   so 32*1 =32
Atomicity of O=4 atomic mass -16   so 16*4 =64
                           sum of all = 98 which is molar mass of H2SO4