a contact sulfuric acid plant produces 98% sulfuric acid, by absorbing SO3 into a 97.3% sulfuric acid solution.

a contact sulfuric acid plant produces 98% sulfuric acid, by absorbing SO3 into a 97.3% sulfuric acid solution. A gas containing 8% SO3 (remainder inerts) enters the SO3 absorption tower at the rate of 28 lb mol per hour.98.5% of the SO3 is absorbed in this tower.97.3% sulfuric acid is introduced into the top of the tower and 95.9% sulfuric acid from another part of the process is used as make-up acid.the flow sheet is given in the figure with all of the known data on it.