14g of lithium hydroxide dissolves in 500cm^3 of water.in titration ,30cm^3 is used to neutralise sulphuric acid of 0,2mol.dm^-3 how do i calculate (a)concentation of a base

I don't understand the question. Do you mean 0.3 cc LiOH neutralizes 0.2 M H2SO4. How much H2SO4 was neutralized?