KCET 2017 Chemistry Solved Paper

1 mole of H2SO4=6.022×1023 molecules of H2SO4=98g of H2SO4
molecules of H2SO4
No. of molecules removed =3.01×1020
No. of molecules left =6.023×1020−3.01×1020
=6.023×1020−3.01×1020
=3.01×1020 molecules left
6.022×1023 molecules of H2SO4=1 mole
1 molecule =‌

1

6.022×1023

moles
3.01×1020 molecules =‌

3.01×1020

6.023×1020

=0.5×10−3 mol