A plant makes liquid co2 by treating dolomitric limestone

Question

Problem: A plant makes liquid CO₂ by treating dolomitric limestone with commercial sulfuric acid. The dolomite analysis 68.0 % CaCO₃, 30.0% MgCO, and 2,0% SiO₂; the acid is 94% H2SO₄ and 6% H₂O.

Part A: Calculate pounds of CO2 produced per ton of dolomite treated?

Part B: Calculate pounds of acid used per ton of dolomite treated?

I need help to calculate pounds of acid used per ton of dolomite treated.