A 5.00-wt% aqueous sulfuric acid solution ( = 1:03 g/ml) flows through a 45-m long pipe with a 6.0 cm diameter at a rate of

A 5.00-wt% aqueous sulfuric acid solution (ρ = 1:03 g/ml) flows through a 45-m long pipe with a 6.0 cm diameter at a rate of 82 L/min. 

(a) What is the molarity of sulfuric acid in the solution? 

(b) How long (in seconds) would it take to fill a 55-gallon drum, and how much sulfuric acid (lb_m) would the drum contain? (You should arrive at your answers with two dimensional equations.) 

(c) The mean velocity of a fluid in a pipe equals the volumetric flow rate divided by the cross-sectional area normal to the direction of flow. Use this information to estimate how long (in seconds) it takes the solution to flow from the pipe inlet to the outlet.