Question

answer the this question

Answer 1

Atomic Mass of  Hydrogen = 1
Atomic Mass of Sulphur = 32
Atomic Mass of Oxygen = 16

Molecular Mass of Sulphuric acid ($H_2SO_4$ = ( 1 *2 ) + ( 32 * 1 ) + ( 16 * 4 ) 
                                                                         = 2 + 32 + 64 = 98

Therefore relative molecular mass or simply molecular mass of Sulphuric acid = 98

Answer 2

hydrogen = 2 hydrogen atoms
=2*1= 2a.m.u
sulphur = 1 atom of sulphur
= 1*32 a.m.u
oxygen = 4 atoms of oxygen
= 4 *16 = 64 a.m.u
RMM = 2 + 32 + 64
= 98 a.m.u. .(ans