Question

Lakes that have been acidified by acid rain can be neutralized by the addition of limestone how much limestone in kilograms would be required to completely neutralize a 5.2 x 10^7 -L lake containing 5.0 x 10^(-3) g of H2SO4 per liter.

Answer 1

This is a stoichiometry problem. The equation is
CaCO3 + H2SO4 ==> CaSO4 + CO2 + H2O
If you need a refresher on stoichiometry, here is a solved example.
http://www.jiskha.com/science/chemistry/stoichiometry.html

Answer 2

yaeh dawg this didnt help but thanks