Question

Calculate the no . Of moles, molecules and neutron in 49 g h2so4

Answer 1

Answer:

we know that no of moles =given mass÷molecular mass of H2SO4

here molecular mass of H2SO4 =(2×1)+(1×32)+(4×16)

=98gm

Given mass= 49 gm

no of moles=49÷98=0.5 mole

1mole contain = 6.02×10^23 molecule

0.5 mole contain= (6.02×10^23)×(0.5)=3.01×10^23 molecules

similarly 1 molecule of h2so4 contain 50 neutron

3.01×10^23 molecule contain neutron= (3.01×10^23)×50

=150.5×10^23 neutrons