A solution of sulfuric acid at 60°F is found to have a sp gr of 1.22. From the tables in Perry's Chemical Engineer's Handbook, the solution is found to be 30 percent by weight H2SO4. Calculate the concentration of H2SO4 in the following units: (a) lbmol / gal, (b) lb / ft3 , (c) g / L, (d) lb H2SO4/lb H2O (e) lb mol H2O / lb-mol total solution